> > Also for usbfs be careful not to use USBDEVFS_URB_TYPE_INTERRUPT if
> > your host controller is OHCI, otherwise you will likely kill your
> > system. Use BULK instead, directed to the INT endpoint.
>
> I thought this was fixed in the latest round of usb-ohci patches?
No, that 0120 patch mad
On 3 Apr 2002, Dmitri wrote:
>On Wed, 2002-04-03 at 20:06, Daniel Cruz wrote:
>
>> Please enlight me on that, why is USB time critical?... I understand is not
>> greatly fast, but there si anything else?..
>
>If you use Isoc pipe it will probably be serviced around few
>milliseconds, but in the
On Wed, Apr 03, 2002 at 06:39:14PM -0500, Dan Streetman wrote:
>
> On Wed, 3 Apr 2002, Greg KH wrote:
>
> >Do you have to write a kernel driver? Can you just use usbfs or libusb
> >to talk to your device from userspace? It handles INT transactions
> >pretty well.
>
> libusb supports INTs? Do
On Thursday 04 April 2002 00:48, Daniel Cruz wrote:
> Hello Gentlemen,
>
> I'm new in this mailing group, also new at USB and I will start writing a
> driver for a USB device, my device only uses INT transactions and my Kernel
> is 2.4.17.
>
> Any idea for a good start point?, should I use usb-ske
Subject: [linux-usb-devel] Writing a Linux USB driver
>
>
>
> Hello Gentlemen,
>
> I'm new in this mailing group, also new at USB and I will
> start writing a
> driver for a USB device, my device only uses INT transactions
> and my Kernel
> is 2.4.17.
>
>
On Wed, 2002-04-03 at 20:06, Daniel Cruz wrote:
> Please enlight me on that, why is USB time critical?... I understand is not
> greatly fast, but there si anything else?..
If you use Isoc pipe it will probably be serviced around few
milliseconds, but in theory the request can be just dropped on
On Wed, Apr 03, 2002 at 06:10:34PM -0800, Daniel Cruz wrote:
>
> The firmware in the microcontroller is written to be used with a HID driver,
> so that is the driver I'm using now, however since timing is very important
> in my application, I think is better to go with a device-specific driver.
> On Wed, Apr 03, 2002 at 06:10:34PM -0800, Daniel Cruz wrote:
> >
> > The firmware in the microcontroller is written to be used with a HID
driver,
> > so that is the driver I'm using now, however since timing is very
important
> > in my application, I think is better to go with a device-s
On Thu, 4 Apr 2002 12:20, Daniel Cruz wrote:
> I'm using a Microchip microcontroller with low speed USB support, the
> microcontroller with a minimum set of peripherals will conform a board for
> a
> robotics application so basically the board will read information from
> encoders and analog i
On Wed, 3 Apr 2002, Greg KH wrote:
>Do you have to write a kernel driver? Can you just use usbfs or libusb
>to talk to your device from userspace? It handles INT transactions
>pretty well.
libusb supports INTs? Do you mean via BULK calls, I looked at the
CVS code and it doesn't look like the
> On Wed, Apr 03, 2002 at 02:48:00PM -0800, Daniel Cruz wrote:
> >
> > Hello Gentlemen,
> >
> > I'm new in this mailing group, also new at USB and I will start writing
a
> > driver for a USB device, my device only uses INT transactions and my
Kernel
> > is 2.4.17.
> >
> > Any idea for a
On Wed, Apr 03, 2002 at 02:48:00PM -0800, Daniel Cruz wrote:
>
> Hello Gentlemen,
>
> I'm new in this mailing group, also new at USB and I will start writing a
> driver for a USB device, my device only uses INT transactions and my Kernel
> is 2.4.17.
>
> Any idea for a good start point?, should
Hello Gentlemen,
I'm new in this mailing group, also new at USB and I will start writing a
driver for a USB device, my device only uses INT transactions and my Kernel
is 2.4.17.
Any idea for a good start point?, should I use usb-skeleton as a start
point, cause I read it only supports Bulk tran
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