From: "Matěj Laitl" <matej@laitl.cz>
To: Daniel Mack <zonque@gmail.com>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>,
Alan Stern <stern@rowland.harvard.edu>,
Florian Mickler <florian@mickler.org>,
Oliver Neukum <oliver@neukum.org>,
linux-usb@vger.kernel.org, alsa-devel@alsa-project.org,
Takashi Iwai <tiwai@suse.de>,
Clemens Ladisch <clemens@ladisch.de>,
pedrib@gmail.com, William Light <wrl@illest.net>,
Greg KH <greg@kroah.com>,
linux-kernel@vger.kernel.org,
Robert Hancock <hancockrwd@gmail.com>
Subject: Re: Allocating buffers for USB transfers (again)
Date: Fri, 12 Aug 2011 01:50:01 +0200 [thread overview]
Message-ID: <1451239.ZLFiT5MIDr@edgy> (raw)
In-Reply-To: <4E446873.9020508@gmail.com>
On 12. 8. 2011 Daniel Mack wrote:
> > This patch actually makes the sound playback _worse_. Now I get strange
> > squawks where previously at least first seconds of a song sounded
> > normally.
> >
> > However, I no longer get "zero length buffer submitted" or that "...
> > Weird." debug messages, only several megabytes of: (should I post these
> > somewhere?)
> >
> > xhci_hcd 0000:05:00.0: Giveback URB ffff880114cec000, len = 880,
> > expected = 1000, status = -115
> > xhci_hcd 0000:05:00.0: Giveback URB ffff880114740000, len = 352,
> > expected = 1000, status = -115
> > xhci_hcd 0000:05:00.0: underrun event on endpoint
>
> Might be the hardware doesn't like this. As I said, the patch is blindly
> written and I couldn't test it. Did you test this on a EHCI port as well?
Good point, this patch distorts the playback also on the EHCI port. (the
playback seems to be 10 times slower than it should be)
Now I have to go, but I hope I'll get another patch from you tomorrow. :-)
Thanks,
Matej
next prev parent reply other threads:[~2011-08-11 23:50 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-07 11:53 Allocating buffers for USB transfers (again) Daniel Mack
2011-07-07 11:53 ` Daniel Mack
[not found] ` <CACTFLANCYMXH=z+NxEF0aqpMGZp21Q16_uB=J3rndM3pW74qeA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-07-07 12:14 ` Clemens Ladisch
2011-07-07 12:14 ` Clemens Ladisch
[not found] ` <4E15A308.7080502-P6GI/4k7KOmELgA04lAiVw@public.gmane.org>
2011-07-07 12:29 ` Daniel Mack
2011-07-07 12:29 ` Daniel Mack
2011-07-07 12:33 ` Oliver Neukum
2011-07-07 12:38 ` Daniel Mack
2011-07-07 13:08 ` Oliver Neukum
[not found] ` <201107071508.43988.oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
2011-07-08 15:13 ` Daniel Mack
2011-07-08 15:13 ` Daniel Mack
2011-07-07 15:06 ` Alan Stern
2011-07-07 15:06 ` Alan Stern
[not found] ` <CACTFLAN=GOw8KLtvVBM6omvYzW3RBHggv-Kc2_2QVD--M-Jxkg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-07-07 15:16 ` Florian Mickler
2011-07-07 15:16 ` Florian Mickler
2011-08-10 7:51 ` Daniel Mack
2011-08-10 7:51 ` Daniel Mack
2011-08-10 14:32 ` Alan Stern
2011-08-10 14:32 ` Alan Stern
2011-08-10 15:33 ` Daniel Mack
2011-08-10 15:33 ` Daniel Mack
2011-08-10 18:06 ` Takashi Iwai
2011-08-10 18:06 ` Takashi Iwai
2011-08-10 23:15 ` Sarah Sharp
2011-08-11 0:57 ` Daniel Mack
2011-08-11 0:57 ` Daniel Mack
[not found] ` <CACTFLAP9eRG6TVtFsNGO+oDu0U0gOUth-_TzLeW2yGb6Jxn2tA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-08-11 16:45 ` Sarah Sharp
2011-08-11 16:45 ` Sarah Sharp
2011-08-11 17:27 ` Daniel Mack
2011-08-11 17:27 ` Daniel Mack
[not found] ` <CACTFLAOi5u-YL+FKGotPSBv5BgEhKO5FLwZeJKdgyis3nZLbcw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-08-11 18:05 ` Sarah Sharp
2011-08-11 18:05 ` Sarah Sharp
2011-08-11 21:39 ` Daniel Mack
2011-08-11 23:29 ` Matěj Laitl
2011-08-11 23:40 ` Daniel Mack
2011-08-11 23:40 ` Daniel Mack
2011-08-11 23:50 ` Matěj Laitl [this message]
2011-08-12 1:28 ` Daniel Mack
2011-08-12 1:28 ` Daniel Mack
[not found] ` <CACTFLANyL95Gy6c2YznV-h0tYdZ7nvRhObsq8dvp9n4_9=D_Mw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-08-12 4:46 ` Sarah Sharp
2011-08-12 4:46 ` Sarah Sharp
2011-08-12 9:55 ` Daniel Mack
2011-08-12 9:55 ` Daniel Mack
2011-08-11 3:22 ` Andiry Xu
2011-08-11 3:22 ` Andiry Xu
2011-08-11 14:36 ` Alan Stern
2011-08-11 14:36 ` Alan Stern
2011-07-07 13:53 ` Johannes Stezenbach
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