[alsa-devel] Driver code with mpc5200 pointer problem.

Jaroslav Kysela perex at perex.cz
Tue Apr 28 10:21:50 CEST 2009

On Mon, 27 Apr 2009, Takashi Iwai wrote:

> At Mon, 27 Apr 2009 17:09:27 +0200 (CEST),
> Jaroslav Kysela wrote:
>> On Mon, 27 Apr 2009, Jon Smirl wrote:
>>> I have fixed all of the other bugs. If I take out the position
>>> estimation code it fails.
>>> Jaroslav hasn't commented on this yet....
>> Appearently, FIFO is too big. I'm working on some changes to take account
>> fifo_size to the jiffies based check. Please, set fifo_size correctly in
>> your driver. USB drivers with big "URB FIFOs" should be changed as well,
>> too.
> Does the usb-audio driver really suffer, too?

It seems not - thanks to nodata URBs. I just verified it with real 


Jaroslav Kysela <perex at perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.

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