Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-18 Thread Alan Cox
On Tue, Sep 18, 2007 at 07:56:05PM -0300, Mauro Carvalho Chehab wrote: > proprietary format. This way, an userspace app may use the userspace > library as a "fallback method" for unknown FOURCC formats. The result > will be probably far away from an optimal result on some cases (since it >

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-18 Thread Mauro Carvalho Chehab
> The reason why there is no single 'format conversion library' that > everybody uses is because of the large differences between requirements > for such a thing. The line between 'format conversion' and things such > as a video codec, or image processing is very vague. Agreed. What I think it

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-18 Thread Markus Rechberger
On 9/18/07, Jelle Foks <[EMAIL PROTECTED]> wrote: > Markus Rechberger wrote: > > On 9/14/07, Alan Cox <[EMAIL PROTECTED]> wrote: > >> On Fri, Sep 14, 2007 at 01:17:05AM +0200, Markus Rechberger wrote: > >>> what stops vendors of using the current existing code to achieve that > >>> goal. They

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-18 Thread Jelle Foks
Markus Rechberger wrote: > On 9/14/07, Alan Cox <[EMAIL PROTECTED]> wrote: >> On Fri, Sep 14, 2007 at 01:17:05AM +0200, Markus Rechberger wrote: >>> what stops vendors of using the current existing code to achieve that >>> goal. They could provide binary drivers with the existing API. >> If you

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-18 Thread Jelle Foks
Markus Rechberger wrote: On 9/14/07, Alan Cox [EMAIL PROTECTED] wrote: On Fri, Sep 14, 2007 at 01:17:05AM +0200, Markus Rechberger wrote: what stops vendors of using the current existing code to achieve that goal. They could provide binary drivers with the existing API. If you feel lucky

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-18 Thread Markus Rechberger
On 9/18/07, Jelle Foks [EMAIL PROTECTED] wrote: Markus Rechberger wrote: On 9/14/07, Alan Cox [EMAIL PROTECTED] wrote: On Fri, Sep 14, 2007 at 01:17:05AM +0200, Markus Rechberger wrote: what stops vendors of using the current existing code to achieve that goal. They could provide binary

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-18 Thread Mauro Carvalho Chehab
The reason why there is no single 'format conversion library' that everybody uses is because of the large differences between requirements for such a thing. The line between 'format conversion' and things such as a video codec, or image processing is very vague. Agreed. What I think it should

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-18 Thread Alan Cox
On Tue, Sep 18, 2007 at 07:56:05PM -0300, Mauro Carvalho Chehab wrote: proprietary format. This way, an userspace app may use the userspace library as a fallback method for unknown FOURCC formats. The result will be probably far away from an optimal result on some cases (since it probably mean

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-17 Thread Markus Rechberger
On 9/15/07, Bernard Jungen <[EMAIL PROTECTED]> wrote: > On Sat, Sep 15, 2007 at 11:04:42AM -0300, Mauro Carvalho Chehab wrote: > > With respect to your kernel-userspace API for xc3028, you made something > > that seemed to be a dream: there's a consensus: not a single developer > > believed that

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-17 Thread Markus Rechberger
On 9/15/07, Bernard Jungen [EMAIL PROTECTED] wrote: On Sat, Sep 15, 2007 at 11:04:42AM -0300, Mauro Carvalho Chehab wrote: With respect to your kernel-userspace API for xc3028, you made something that seemed to be a dream: there's a consensus: not a single developer believed that this is

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-16 Thread Hans Verkuil
On Saturday 15 September 2007 18:58:34 Bernard Jungen wrote: > On Sat, Sep 15, 2007 at 11:04:42AM -0300, Mauro Carvalho Chehab wrote: > > With respect to your kernel-userspace API for xc3028, you made > > something that seemed to be a dream: there's a consensus: not a > > single developer believed

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-16 Thread Hans Verkuil
On Saturday 15 September 2007 18:58:34 Bernard Jungen wrote: On Sat, Sep 15, 2007 at 11:04:42AM -0300, Mauro Carvalho Chehab wrote: With respect to your kernel-userspace API for xc3028, you made something that seemed to be a dream: there's a consensus: not a single developer believed that

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Bernard Jungen
On Sat, Sep 15, 2007 at 11:04:42AM -0300, Mauro Carvalho Chehab wrote: > With respect to your kernel-userspace API for xc3028, you made something > that seemed to be a dream: there's a consensus: not a single developer > believed that this is the better way; nobody seems that this is the > better

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Steven Toth
Johannes Stezenbach wrote: On Sat, Sep 15, 2007, Markus Rechberger wrote: The main discussion in this thread was about drivers in userspace are bad because the API will allow binary drivers. The guy who works for Hauppauge (again I also have good contacts at Hauppauge Europe) writes it's bad

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Mauro Carvalho Chehab
Em Sáb, 2007-09-15 às 16:33 +0200, Markus Rechberger escreveu: > I'm off for the weekend now so have a nice one :-) Enjoy your weekend. I really hope that you have some time to reflect and review your positions during the weekend. -- Cheers, Mauro - To unsubscribe from this list: send the

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Markus Rechberger
On 9/15/07, Mauro Carvalho Chehab <[EMAIL PROTECTED]> wrote: > > Everyone knows that there are some issues even some internal > > ones which I'm not part of. > > With respect to your kernel-userspace API for xc3028, you made something > that seemed to be a dream: there's a consensus: not a single

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Mauro Carvalho Chehab
> Everyone knows that there are some issues even some internal > ones which I'm not part of. With respect to your kernel-userspace API for xc3028, you made something that seemed to be a dream: there's a consensus: not a single developer believed that this is the better way; nobody seems that this

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Markus Rechberger
On 9/15/07, Johannes Stezenbach <[EMAIL PROTECTED]> wrote: > On Sat, Sep 15, 2007, Markus Rechberger wrote: > > > > it gets me thinking. Some core developers who I met during > > the last few weeks (kernel summit, suse conference in czech) > > told me to go on with it actually because the final

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Johannes Stezenbach
On Sat, Sep 15, 2007, Markus Rechberger wrote: > The main discussion in this thread was about drivers in userspace > are bad because the API will allow binary drivers. The guy > who works for Hauppauge (again I also have good contacts > at Hauppauge Europe) writes it's bad - for no technical

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Johannes Stezenbach
On Sat, Sep 15, 2007, Markus Rechberger wrote: > > it gets me thinking. Some core developers who I met during > the last few weeks (kernel summit, suse conference in czech) > told me to go on with it actually because the final plan isn't that > bad.. I was referring to your code you posted for

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Markus Rechberger
On 9/15/07, Mauro Carvalho Chehab <[EMAIL PROTECTED]> wrote: > > The main discussion in this thread was about drivers in userspace > > are bad because the API will allow binary drivers. > > No. The focus is that userspace API is not needed at all, and the > community believe that this is a

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Manu Abraham
Hello Markus, Markus Rechberger wrote: > The main discussion in this thread was about drivers in userspace > are bad because the API will allow binary drivers. The guy > who works for Hauppauge (again I also have good contacts > at Hauppauge Europe) writes it's bad - for no technical reason.

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Manu Abraham
Hello Markus, Markus Rechberger wrote: The main discussion in this thread was about drivers in userspace are bad because the API will allow binary drivers. The guy who works for Hauppauge (again I also have good contacts at Hauppauge Europe) writes it's bad - for no technical reason.

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Markus Rechberger
On 9/15/07, Mauro Carvalho Chehab [EMAIL PROTECTED] wrote: The main discussion in this thread was about drivers in userspace are bad because the API will allow binary drivers. No. The focus is that userspace API is not needed at all, and the community believe that this is a regression from

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Johannes Stezenbach
On Sat, Sep 15, 2007, Markus Rechberger wrote: it gets me thinking. Some core developers who I met during the last few weeks (kernel summit, suse conference in czech) told me to go on with it actually because the final plan isn't that bad.. I was referring to your code you posted for

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Johannes Stezenbach
On Sat, Sep 15, 2007, Markus Rechberger wrote: The main discussion in this thread was about drivers in userspace are bad because the API will allow binary drivers. The guy who works for Hauppauge (again I also have good contacts at Hauppauge Europe) writes it's bad - for no technical reason.

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Markus Rechberger
On 9/15/07, Johannes Stezenbach [EMAIL PROTECTED] wrote: On Sat, Sep 15, 2007, Markus Rechberger wrote: it gets me thinking. Some core developers who I met during the last few weeks (kernel summit, suse conference in czech) told me to go on with it actually because the final plan isn't

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Mauro Carvalho Chehab
Everyone knows that there are some issues even some internal ones which I'm not part of. With respect to your kernel-userspace API for xc3028, you made something that seemed to be a dream: there's a consensus: not a single developer believed that this is the better way; nobody seems that this

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Markus Rechberger
On 9/15/07, Mauro Carvalho Chehab [EMAIL PROTECTED] wrote: Everyone knows that there are some issues even some internal ones which I'm not part of. With respect to your kernel-userspace API for xc3028, you made something that seemed to be a dream: there's a consensus: not a single developer

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Mauro Carvalho Chehab
Em Sáb, 2007-09-15 às 16:33 +0200, Markus Rechberger escreveu: I'm off for the weekend now so have a nice one :-) Enjoy your weekend. I really hope that you have some time to reflect and review your positions during the weekend. -- Cheers, Mauro - To unsubscribe from this list: send the line

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Steven Toth
Johannes Stezenbach wrote: On Sat, Sep 15, 2007, Markus Rechberger wrote: The main discussion in this thread was about drivers in userspace are bad because the API will allow binary drivers. The guy who works for Hauppauge (again I also have good contacts at Hauppauge Europe) writes it's bad

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-15 Thread Bernard Jungen
On Sat, Sep 15, 2007 at 11:04:42AM -0300, Mauro Carvalho Chehab wrote: With respect to your kernel-userspace API for xc3028, you made something that seemed to be a dream: there's a consensus: not a single developer believed that this is the better way; nobody seems that this is the better

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
> The main discussion in this thread was about drivers in userspace > are bad because the API will allow binary drivers. No. The focus is that userspace API is not needed at all, and the community believe that this is a regression from all efforts that are being done by the community to have

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Johannes Stezenbach <[EMAIL PROTECTED]> wrote: > On Fri, Sep 14, 2007, Markus Rechberger wrote: > > > > people do contribute to the em28xx project. > ... > > there's also an active and even problem solving oriented ML available: > > http://mcentral.de/pipermail/em28xx/ > > > > Also if

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
> Beside that I'm just curious how much did you contribute > during the last 2 years to the lkml/linux kernel, and how much > do you want to contribute in future? (also from my side > talk is cheap (even for me) but getting something done costs > quite some time and feedback from other people)

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Johannes Stezenbach <[EMAIL PROTECTED]> wrote: > On Fri, Sep 14, 2007, Markus Rechberger wrote: > > > > people do contribute to the em28xx project. > ... > > there's also an active and even problem solving oriented ML available: > > http://mcentral.de/pipermail/em28xx/ > > > > Also if

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Manu Abraham
Aidan Thornton wrote: > > I think this will require a rethink of either how the em2880-dvb > driver works or how frontend drivers work. The current API expects > users to initialise their frontend and then bind a tuner to it. > em2880-dvb is a sort of subdriver that attaches to the main driver,

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
> > There is no reason why the Xceive driver cannot be merged into the > > current development tree using the hybrid tuner framework as it stands > > today. > > I'm not convinced this is entirely true. In order to avoid unnecessary > reinitialisation of the device, the driver needs to know

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Aidan Thornton
Hi, On 9/14/07, Michael Krufky <[EMAIL PROTECTED]> wrote: > On 9/14/07, Mauro Carvalho Chehab <[EMAIL PROTECTED]> wrote: > > > > - The hybrid tuner support, that where your requirement, when all those > > > > discussions started, were already added to the subsystem. So now, an > > > > hybrid

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Johannes Stezenbach
On Fri, Sep 14, 2007, Markus Rechberger wrote: > > people do contribute to the em28xx project. ... > there's also an active and even problem solving oriented ML available: > http://mcentral.de/pipermail/em28xx/ > > Also if you look at the mercurial code you'll see several people > contributing

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Alex Deucher
On 9/14/07, Markus Rechberger <[EMAIL PROTECTED]> wrote: > On 9/14/07, Alex Deucher <[EMAIL PROTECTED]> wrote: > > On 9/14/07, Markus Rechberger <[EMAIL PROTECTED]> wrote: > > > On 9/14/07, Manu Abraham <[EMAIL PROTECTED]> wrote: > > > > Joerg Roedel wrote: > > > > > On Fri, Sep 14, 2007 at

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Michael Krufky
On 9/14/07, Mauro Carvalho Chehab <[EMAIL PROTECTED]> wrote: > > > - The hybrid tuner support, that where your requirement, when all those > > > discussions started, were already added to the subsystem. So now, an > > > hybrid tuner can be accessed by both DVB and V4L devices; > > > > > > > It's

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Alex Deucher <[EMAIL PROTECTED]> wrote: > On 9/14/07, Markus Rechberger <[EMAIL PROTECTED]> wrote: > > On 9/14/07, Manu Abraham <[EMAIL PROTECTED]> wrote: > > > Joerg Roedel wrote: > > > > On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: > > > > What do you think about

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Alex Deucher
On 9/14/07, Markus Rechberger <[EMAIL PROTECTED]> wrote: > On 9/14/07, Manu Abraham <[EMAIL PROTECTED]> wrote: > > Joerg Roedel wrote: > > > On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: > > > What do you think about IOMMU? > > > > > > > > Just because AMD or INTEL

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
> > - The hybrid tuner support, that where your requirement, when all those > > discussions started, were already added to the subsystem. So now, an > > hybrid tuner can be accessed by both DVB and V4L devices; > > > > It's far more complex as the thing which is implemented there. > The only

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Mauro Carvalho Chehab <[EMAIL PROTECTED]> wrote: > Markus, > > > > > > > Maybe you still don't realize how tiresome it is to talk to you. > > > What you present as "linuxtv people block my contributions" is > > > IMHO "linuxtv people got fed up talking to you". Because when > > >

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Joerg Roedel
On Fri, Sep 14, 2007 at 08:56:40PM +0400, Manu Abraham wrote: > > I do understand that (an earlier reply from Grant Grundler on the same > [1], while working on something else), but that wasn't exactly what i > was getting at. The bridges are in fact tied up with a certain CPU class. > > Though

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
Markus, > > > > Maybe you still don't realize how tiresome it is to talk to you. > > What you present as "linuxtv people block my contributions" is > > IMHO "linuxtv people got fed up talking to you". Because when > > people disagree with you, you keep rambling on and on instead > > of just

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Manu Abraham
Joerg Roedel wrote: >>> Common new IOMMUs have only very few in common with the AGP GART. In >>> fact, with current modern IOMMU hardware it will be possible to >>> implement secure userspace device drivers that are even able to do DMA. >>> This is not possible with the GART. >>> Though you

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Johannes Stezenbach <[EMAIL PROTECTED]> wrote: > On Fri, Sep 14, 2007, Markus Rechberger wrote: > > On 9/14/07, Steven Toth <[EMAIL PROTECTED]> wrote: > > > > > > If you care about LinuxTV you'll work with the core subsystem developers > > > to bring your em28xx tree inline. If you

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Alan Cox <[EMAIL PROTECTED]> wrote: > On Fri, Sep 14, 2007 at 01:17:05AM +0200, Markus Rechberger wrote: > > what stops vendors of using the current existing code to achieve that > > goal. They could provide binary drivers with the existing API. > > If you feel lucky about the GPL > >

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Joerg Roedel
On Fri, Sep 14, 2007 at 04:00:30PM +0400, Manu Abraham wrote: > Joerg Roedel wrote: > > On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: > > What do you think about IOMMU? > > > > > Just because AMD or INTEL want to invent some whizzy new technology it > doesn't

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Manu Abraham <[EMAIL PROTECTED]> wrote: > Joerg Roedel wrote: > > On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: > > What do you think about IOMMU? > > > > > Just because AMD or INTEL want to invent some whizzy new technology it > doesn't say

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Alan Cox
On Fri, Sep 14, 2007 at 01:17:05AM +0200, Markus Rechberger wrote: > what stops vendors of using the current existing code to achieve that > goal. They could provide binary drivers with the existing API. If you feel lucky about the GPL > What stops companies to intercept the ioctl calls and

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Alan Cox
> > * Why did someone duallicense videodev2 with BSD/GPL? Originally the BSD people wanted to share the interface for user space compatibility. The kernel however is GPL so the BSD licence on some bits of the code isn't really relevant as the combination of bits you depend upon is GPL, will

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Manu Abraham
Joerg Roedel wrote: > On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: > What do you think about IOMMU? > > Just because AMD or INTEL want to invent some whizzy new technology it doesn't say anything about the TV card development and retail business. Intel

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Johannes Stezenbach
On Fri, Sep 14, 2007, Markus Rechberger wrote: > On 9/14/07, Steven Toth <[EMAIL PROTECTED]> wrote: > > > > If you care about LinuxTV you'll work with the core subsystem developers > > to bring your em28xx tree inline. If you don't care then why are you here? > > It doesn't really work out to

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Joerg Roedel
On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: > >>> What do you think about IOMMU? > >>> > >>> > >> Just because AMD or INTEL want to invent some whizzy new technology it > >> doesn't say anything about the TV card development and retail business. > >> Intel and AMD have teams of

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Manu Abraham
>>> What do you think about IOMMU? >>> >>> >> Just because AMD or INTEL want to invent some whizzy new technology it >> doesn't say anything about the TV card development and retail business. >> Intel and AMD have teams of Linux engineers helping operating system >> developers bring their ideas

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Steven Toth <[EMAIL PROTECTED]> wrote: > Markus Rechberger wrote: > > On 9/13/07, Steven Toth <[EMAIL PROTECTED]> wrote: > > > Also there is to consider a non technical aspect, whether vendors will > misuse this interface for binary only, undermining the efforts put in >

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Steven Toth [EMAIL PROTECTED] wrote: Markus Rechberger wrote: On 9/13/07, Steven Toth [EMAIL PROTECTED] wrote: Also there is to consider a non technical aspect, whether vendors will misuse this interface for binary only, undermining the efforts put in for OSS drivers.

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Manu Abraham
What do you think about IOMMU? Just because AMD or INTEL want to invent some whizzy new technology it doesn't say anything about the TV card development and retail business. Intel and AMD have teams of Linux engineers helping operating system developers bring their ideas and technologies to

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Joerg Roedel
On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: What do you think about IOMMU? Just because AMD or INTEL want to invent some whizzy new technology it doesn't say anything about the TV card development and retail business. Intel and AMD have teams of Linux engineers

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Johannes Stezenbach
On Fri, Sep 14, 2007, Markus Rechberger wrote: On 9/14/07, Steven Toth [EMAIL PROTECTED] wrote: If you care about LinuxTV you'll work with the core subsystem developers to bring your em28xx tree inline. If you don't care then why are you here? It doesn't really work out to work with

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Manu Abraham
Joerg Roedel wrote: On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: What do you think about IOMMU? Just because AMD or INTEL want to invent some whizzy new technology it doesn't say anything about the TV card development and retail business. Intel and AMD have teams of Linux

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Alan Cox
* Why did someone duallicense videodev2 with BSD/GPL? Originally the BSD people wanted to share the interface for user space compatibility. The kernel however is GPL so the BSD licence on some bits of the code isn't really relevant as the combination of bits you depend upon is GPL, will remain

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Alan Cox
On Fri, Sep 14, 2007 at 01:17:05AM +0200, Markus Rechberger wrote: what stops vendors of using the current existing code to achieve that goal. They could provide binary drivers with the existing API. If you feel lucky about the GPL What stops companies to intercept the ioctl calls and

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Manu Abraham [EMAIL PROTECTED] wrote: Joerg Roedel wrote: On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: What do you think about IOMMU? Just because AMD or INTEL want to invent some whizzy new technology it doesn't say anything about the TV card development

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Joerg Roedel
On Fri, Sep 14, 2007 at 04:00:30PM +0400, Manu Abraham wrote: Joerg Roedel wrote: On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: What do you think about IOMMU? Just because AMD or INTEL want to invent some whizzy new technology it doesn't say anything about the TV card

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Alan Cox [EMAIL PROTECTED] wrote: On Fri, Sep 14, 2007 at 01:17:05AM +0200, Markus Rechberger wrote: what stops vendors of using the current existing code to achieve that goal. They could provide binary drivers with the existing API. If you feel lucky about the GPL What stops

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Johannes Stezenbach [EMAIL PROTECTED] wrote: On Fri, Sep 14, 2007, Markus Rechberger wrote: On 9/14/07, Steven Toth [EMAIL PROTECTED] wrote: If you care about LinuxTV you'll work with the core subsystem developers to bring your em28xx tree inline. If you don't care then why

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Manu Abraham
Joerg Roedel wrote: Common new IOMMUs have only very few in common with the AGP GART. In fact, with current modern IOMMU hardware it will be possible to implement secure userspace device drivers that are even able to do DMA. This is not possible with the GART. Though you get a physical to

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
Markus, Maybe you still don't realize how tiresome it is to talk to you. What you present as linuxtv people block my contributions is IMHO linuxtv people got fed up talking to you. Because when people disagree with you, you keep rambling on and on instead of just accepting it. See,

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Joerg Roedel
On Fri, Sep 14, 2007 at 08:56:40PM +0400, Manu Abraham wrote: I do understand that (an earlier reply from Grant Grundler on the same [1], while working on something else), but that wasn't exactly what i was getting at. The bridges are in fact tied up with a certain CPU class. Though your

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Mauro Carvalho Chehab [EMAIL PROTECTED] wrote: Markus, Maybe you still don't realize how tiresome it is to talk to you. What you present as linuxtv people block my contributions is IMHO linuxtv people got fed up talking to you. Because when people disagree with you,

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Alex Deucher
On 9/14/07, Markus Rechberger [EMAIL PROTECTED] wrote: On 9/14/07, Manu Abraham [EMAIL PROTECTED] wrote: Joerg Roedel wrote: On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: What do you think about IOMMU? Just because AMD or INTEL want to invent some whizzy new

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
- The hybrid tuner support, that where your requirement, when all those discussions started, were already added to the subsystem. So now, an hybrid tuner can be accessed by both DVB and V4L devices; It's far more complex as the thing which is implemented there. The only thing that has

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Alex Deucher [EMAIL PROTECTED] wrote: On 9/14/07, Markus Rechberger [EMAIL PROTECTED] wrote: On 9/14/07, Manu Abraham [EMAIL PROTECTED] wrote: Joerg Roedel wrote: On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu Abraham wrote: What do you think about IOMMU? Just

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Michael Krufky
On 9/14/07, Mauro Carvalho Chehab [EMAIL PROTECTED] wrote: - The hybrid tuner support, that where your requirement, when all those discussions started, were already added to the subsystem. So now, an hybrid tuner can be accessed by both DVB and V4L devices; It's far more complex as

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Alex Deucher
On 9/14/07, Markus Rechberger [EMAIL PROTECTED] wrote: On 9/14/07, Alex Deucher [EMAIL PROTECTED] wrote: On 9/14/07, Markus Rechberger [EMAIL PROTECTED] wrote: On 9/14/07, Manu Abraham [EMAIL PROTECTED] wrote: Joerg Roedel wrote: On Fri, Sep 14, 2007 at 11:57:59AM +0400, Manu

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Johannes Stezenbach
On Fri, Sep 14, 2007, Markus Rechberger wrote: people do contribute to the em28xx project. ... there's also an active and even problem solving oriented ML available: http://mcentral.de/pipermail/em28xx/ Also if you look at the mercurial code you'll see several people contributing to that

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Aidan Thornton
Hi, On 9/14/07, Michael Krufky [EMAIL PROTECTED] wrote: On 9/14/07, Mauro Carvalho Chehab [EMAIL PROTECTED] wrote: - The hybrid tuner support, that where your requirement, when all those discussions started, were already added to the subsystem. So now, an hybrid tuner can be accessed

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
There is no reason why the Xceive driver cannot be merged into the current development tree using the hybrid tuner framework as it stands today. I'm not convinced this is entirely true. In order to avoid unnecessary reinitialisation of the device, the driver needs to know whether the

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Manu Abraham
Aidan Thornton wrote: I think this will require a rethink of either how the em2880-dvb driver works or how frontend drivers work. The current API expects users to initialise their frontend and then bind a tuner to it. em2880-dvb is a sort of subdriver that attaches to the main driver, and

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Johannes Stezenbach [EMAIL PROTECTED] wrote: On Fri, Sep 14, 2007, Markus Rechberger wrote: people do contribute to the em28xx project. ... there's also an active and even problem solving oriented ML available: http://mcentral.de/pipermail/em28xx/ Also if you look at the

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
Beside that I'm just curious how much did you contribute during the last 2 years to the lkml/linux kernel, and how much do you want to contribute in future? (also from my side talk is cheap (even for me) but getting something done costs quite some time and feedback from other people)

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Markus Rechberger
On 9/14/07, Johannes Stezenbach [EMAIL PROTECTED] wrote: On Fri, Sep 14, 2007, Markus Rechberger wrote: people do contribute to the em28xx project. ... there's also an active and even problem solving oriented ML available: http://mcentral.de/pipermail/em28xx/ Also if you look at the

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-14 Thread Mauro Carvalho Chehab
The main discussion in this thread was about drivers in userspace are bad because the API will allow binary drivers. No. The focus is that userspace API is not needed at all, and the community believe that this is a regression from all efforts that are being done by the community to have good

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Steven Toth
Markus Rechberger wrote: On 9/13/07, Steven Toth <[EMAIL PROTECTED]> wrote: Also there is to consider a non technical aspect, whether vendors will misuse this interface for binary only, undermining the efforts put in for OSS drivers. What holds companies for using the current

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread hermann pitton
Am Donnerstag, den 13.09.2007, 16:36 -0400 schrieb Steven Toth: > > > >> Also there is to consider a non technical aspect, whether vendors will > >> misuse this interface for binary only, undermining the efforts put in > >> for OSS drivers. > >> > >> > > > > What holds companies for using

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Markus Rechberger
On 9/13/07, Steven Toth <[EMAIL PROTECTED]> wrote: > > > > >> Also there is to consider a non technical aspect, whether vendors will > >> misuse this interface for binary only, undermining the efforts put in > >> for OSS drivers. > >> > >> > > > > What holds companies for using the current

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Steven Toth
Also there is to consider a non technical aspect, whether vendors will misuse this interface for binary only, undermining the efforts put in for OSS drivers. What holds companies for using the current available code putting it into an rpm or deb package and releasing such code now?

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Manu Abraham
Markus Rechberger wrote: > On 9/13/07, Manu Abraham <[EMAIL PROTECTED]> wrote: >> Markus Rechberger wrote: >>> On 9/13/07, Manu Abraham <[EMAIL PROTECTED]> wrote: > It's only a step in development, I do not intend to keep the kernel > stub in the end, but I do intend to keep and use the

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Markus Rechberger
On 9/13/07, Manu Abraham <[EMAIL PROTECTED]> wrote: > Markus Rechberger wrote: > > On 9/13/07, Manu Abraham <[EMAIL PROTECTED]> wrote: > >>> It's only a step in development, I do not intend to keep the kernel > >>> stub in the end, but I do intend to keep and use the userspace drivers > >>> with

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Manu Abraham
Markus Rechberger wrote: > On 9/13/07, Manu Abraham <[EMAIL PROTECTED]> wrote: >>> It's only a step in development, I do not intend to keep the kernel >>> stub in the end, but I do intend to keep and use the userspace drivers >>> with i2c-dev in the long run, this requires a v4l/dvb library at the

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Markus Rechberger
On 9/13/07, Manu Abraham <[EMAIL PROTECTED]> wrote: > > > It's only a step in development, I do not intend to keep the kernel > > stub in the end, but I do intend to keep and use the userspace drivers > > with i2c-dev in the long run, this requires a v4l/dvb library at the front > > of everything.

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Manu Abraham
> It's only a step in development, I do not intend to keep the kernel > stub in the end, but I do intend to keep and use the userspace drivers > with i2c-dev in the long run, this requires a v4l/dvb library at the front > of everything. Well, this was what adq and myself did with libdvbapi and

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Markus Rechberger
On 9/13/07, Johannes Stezenbach <[EMAIL PROTECTED]> wrote: > On Thu, Sep 13, 2007, Markus Rechberger wrote: > > Let's add the LKML to this. > > > > On 9/13/07, Markus Rechberger <[EMAIL PROTECTED]> wrote: > > > On 9/12/07, Mauro Carvalho Chehab <[EMAIL PROTECTED]> wrote: > > > > I don't see any

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Johannes Stezenbach
On Thu, Sep 13, 2007, Markus Rechberger wrote: > > We currently have an implementation that works, although > it works by downloading several firmwares for several devices > or even several countries. This is not what I want to have in > future since it's not needed and it's also hard to manage

Re: [linux-dvb] [PATCH] Userspace tuner

2007-09-13 Thread Markus Rechberger
Hi, On 9/13/07, Johannes Stezenbach <[EMAIL PROTECTED]> wrote: > On Thu, Sep 13, 2007, Markus Rechberger wrote: > > > > We currently have an implementation that works, although > > it works by downloading several firmwares for several devices > > or even several countries. This is not what I want

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