Re: boot slow down
How hard would it be to get an official kernel option not to load firmware OR be able to set the timeout? -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: boot slow down
Hi James, On Mon, Aug 06, 2012 at 12:38:51AM -0400, James wrote: On 08/05/12 17:20, Sakari Ailus wrote: Hi Andy and James, On Sat, Aug 04, 2012 at 06:28:19PM -0400, James wrote: On 08/04/12 13:42, Andy Walls wrote: James bjloc...@lockie.ca wrote: There's a big pause before the 'unable' [2.243856] usb 4-1: Manufacturer: Logitech [ 62.739097] cx25840 6-0044: unable to open firmware v4l-cx23885-avcore-01.fw I have a cx23885 cx23885[0]: registered device video0 [v4l2] Is there any way to stop it from trying to load the firmware? What is the firmware for, analog tv? Digital works fine and analog is useless to me. I assume it is timing out there. -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html The firmware is for the analog broadcast audio standard (e.g. BTSC) detection microcontroller. The A/V core of the CX23885/7/8 chips is for analog vidoe and audio processing (broadcast, CVBS, SVideo, audio L/R in). The A/V core of the CX23885 provides the IR unit and the Video PLL provides the timing for the IR unit. The A/V core of the CX23888 provides the Video PLL which is the timing for the IR unit in the CX23888. Just grab the firmware and be done with it. Don't waste time with trying to make the cx23885 working properly but halfway. Regards, Andy I already have the firmware. # ls -l /lib/firmware/v4l-cx23885-avcore-01.fw -rw-r--r-- 1 root root 16382 Oct 15 2011 /lib/firmware/v4l-cx23885-avcore-01.fw The timeout if for allowing the user space helper enough time to provide the driver with the firmware, but it seems the helper isn't around as the timeout expires. Is udev running around the time of the first line? Is the driver linked directly into the kernel or is it a module? Kind regards, I have this set so the firmware is in the kernel. Symbol: FIRMWARE_IN_KERNEL [=y] I don't know about that driver, but if the udev would have to provide the firmware, and it's not running, the delay is expected. Two seconds after kernel startup is so early that the user space, including udev, might not yet be running. Kind regards, -- Sakari Ailus e-mail: sakari.ai...@iki.fi jabber/XMPP/Gmail: sai...@retiisi.org.uk Doesn't that kernel option mean the firmware is put into the kernel at kernel build time? If I build the module, is there a module option to skip the delay? -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: boot slow down
bjloc...@lockie.ca wrote: Hi James, On Mon, Aug 06, 2012 at 12:38:51AM -0400, James wrote: On 08/05/12 17:20, Sakari Ailus wrote: Hi Andy and James, On Sat, Aug 04, 2012 at 06:28:19PM -0400, James wrote: On 08/04/12 13:42, Andy Walls wrote: James bjloc...@lockie.ca wrote: There's a big pause before the 'unable' [2.243856] usb 4-1: Manufacturer: Logitech [ 62.739097] cx25840 6-0044: unable to open firmware v4l-cx23885-avcore-01.fw I have a cx23885 cx23885[0]: registered device video0 [v4l2] Is there any way to stop it from trying to load the firmware? What is the firmware for, analog tv? Digital works fine and analog is useless to me. I assume it is timing out there. -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html The firmware is for the analog broadcast audio standard (e.g. BTSC) detection microcontroller. The A/V core of the CX23885/7/8 chips is for analog vidoe and audio processing (broadcast, CVBS, SVideo, audio L/R in). The A/V core of the CX23885 provides the IR unit and the Video PLL provides the timing for the IR unit. The A/V core of the CX23888 provides the Video PLL which is the timing for the IR unit in the CX23888. Just grab the firmware and be done with it. Don't waste time with trying to make the cx23885 working properly but halfway. Regards, Andy I already have the firmware. # ls -l /lib/firmware/v4l-cx23885-avcore-01.fw -rw-r--r-- 1 root root 16382 Oct 15 2011 /lib/firmware/v4l-cx23885-avcore-01.fw The timeout if for allowing the user space helper enough time to provide the driver with the firmware, but it seems the helper isn't around as the timeout expires. Is udev running around the time of the first line? Is the driver linked directly into the kernel or is it a module? Kind regards, I have this set so the firmware is in the kernel. Symbol: FIRMWARE_IN_KERNEL [=y] I don't know about that driver, but if the udev would have to provide the firmware, and it's not running, the delay is expected. Two seconds after kernel startup is so early that the user space, including udev, might not yet be running. Kind regards, -- Sakari Ailus e-mail: sakari.ai...@iki.fi jabber/XMPP/Gmail: sai...@retiisi.org.uk Doesn't that kernel option mean the firmware is put into the kernel at kernel build time? If I build the module, is there a module option to skip the delay? Hi, The CX2388x firmware is _never_ built into the kernel. I'm not sure what that particular kernel config option is for. The kernel delay waiting for userspace to load firmware is settable using a node under /sys somewhere. The default is 60 seconds. You will have to change it in very early boot, or fix the hardcoded constant in the kernel and recompile your kernel. Shortening the delay may not get you entirely acceptable results. If udev is not, or is refusing to load firmware for the cx25840 module, then that module will not properly initialize the CX23885/7/8 A/V core hardware and will likely return with failure. I'm not sure if the cx23885 driver will happily continue on, if that happens. It works fine even though it times out. If you still have a modular kernel build around, you may wish to test with it. Blacklist the cx23885 module in /etc/modprobe.conf and the use udevadm to investigate what is going on with udev when you later modprobe the cx23885 driver. If building the video card driver into the kernel is causing you all the problems, then I simply recommend not doing that. I'll try it as a module. Regards, Andy -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: 3.5 kernel options for Hauppauge_WinTV-HVR-1250
On Thu, Aug 2, 2012 at 5:53 AM, Andy Walls awa...@md.metrocast.net
wrote:
You can 'grep MODULE_ drivers/media/video/cx23885/*
drivers/media/video/cx25840/* ' and other relevant directories under
drivers/media/{dvb, common} to find all the parameter options for all
the drivers involved in making a HVR_1250 work.
Or just build with everything enabled until you know it is working,
and then optimize the list of modules later.
It should have been easier, select the card and it builds all the drivers
it needs. :-)
Is there a script somewhere that lets me select a card and automatically
modifies the kernel config?
Also, the 1250 is broken for analog until very recently (patches went
upstream for 3.5/3.6 a few days ago).
North American OTA is all digital so I have no way to test it.
Devin
--
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
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Re: 3.5 kernel options for Hauppauge_WinTV-HVR-1250
Heck, even for the 1250 there are eight or ten different versions, so most users wouldn't even know the right one to choose. Do you mean boards that use different chips? I hate it when manufacturers do that (ie. with routers). -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
