Amit, in snd_complete_urb() snd_pcm_stop() is only linked to failure of subs->ops.prepare(subs, substream->runtime, urb) or usb_submit_urb(urb, GFP_ATOMIC) when you get continuous loop of -18 error messages ..can you find out following values in function retire_capture_urb() - urb->number_of_packets - runtime->frame_bits - urb->iso_frame_desc[i].actual_length - len Thanks Rahul Ruikar On 26 October 2010 16:00, Amit Nagal <helloin.amit@xxxxxxxxx> wrote: > Hi , > > > Before doing any modification , i tried as suggested : > > 1) > i tried these 3 patches : > > a) ALSA: usb - Release capture substream URBs properly . > b) ALSA: usb-audio - Avoid Oops after disconnect . > c) ALSA: usb - Fix Oops after usb-midi disconnection . > > end result : problem remains same . > > 2) > > i found sound stack in my embedded kernel and 2.6.30.9 sound stack ( > linux / sound and linux / include/sound ) files same . > even i replaced complete sound stack from 2.6.32 , 2.6.34 , 2.6.35 > from www.kernel.org . > but still problem didnot went away . > > end result : problem remains same . > > 3) then i tried whatever i checked in my last mail . > > > Thanx for your time . please suggest accordingly . > > Thanx & Regards > Amit Nagal > > > > > > > > > > > > > > On Tue, Oct 26, 2010 at 2:02 PM, Clemens Ladisch <clemens@xxxxxxxxxx> wrote: >> Amit Nagal wrote: >>> We are able to do usb audio disconnect with some change in >>> retire_capture_urb() function . >>> but we are not sure whether our way to handle this is right or not . >> >> Is there a reason why you didn't try the patch that I pointed out >> to you? >> >> >> Regards, >> Clemens >> > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
