Re: [Libusb-devel] newbie urb question

[Johannes E. <joh...@er...>]

On Wed, Jan 22, 2003, shino korah <shi...@ya...> wrote:
> I'm developing a driver for a USB device and have the
> user level driver working with libusb.
> 
> My problem is I want to make the kernel level driver
> also and got stuck at a urb data transfer.
> 
> I'm doing DMA chunks of data using an array of urbs.
> urb * write_urb[20];
> I do the DMA write in a loop and I'm always running
> out of the write_urb's (-EINPROGRESS). Even if I
> increase the array size some where I'll fail.
> 
> Is using array of urb the best way to do this?
> 
> My device should be able to handle all the writes
> since with libusb I can do this. 

This isn't a libusb problem. You are better taking this up on the
linux-usb-devel list.

JE