From: Ezequiel Garcia <ezequiel.garcia-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Daniel Mack <daniel-cYrQPVfZoowdnm+yROfE0A@public.gmane.org>
Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>,
Sebastian Andrzej Siewior
<bigeasy-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: AM335x USB DMA seems broken on ISOC URBs
Date: Mon, 20 Jan 2014 08:25:28 -0300 [thread overview]
Message-ID: <20140120112527.GA10382@localhost> (raw)
In-Reply-To: <52DD055C.1090806-cYrQPVfZoowdnm+yROfE0A@public.gmane.org>
On Mon, Jan 20, 2014 at 12:15:40PM +0100, Daniel Mack wrote:
> On 01/18/2014 04:12 PM, Daniel Mack wrote:
> > On 01/17/2014 05:27 PM, Ezequiel Garcia wrote:
> >> On Sun, Dec 22, 2013 at 02:59:45AM -0300, Ezequiel Garcia wrote:
>
> >>> While doing some experiments with the stk1160 driver (for "Easycap" TV video
> >>> capture devices), ran into problems using v3.13-rc4. The problem is that the
> >>> stk1160 IRQ handler receives no URBs at all.
>
> [...]
>
> > Let me know if you find anything - I hope to find some time to do
> > similar tests on AM33xx based hardware.
>
> I tried using an USB headset connected to a AM33xx based board, using
> kernel v3.13.
>
> The good news is that aplay gives me sound, so there's nothing generally
> wrong with isochronous streams on musb_dsps/cppi41.
>
Hm.. interesting. I wonder what's the difference between those URBs and
the video URBs involved in stk1160 operation. Maybe the size of each
buffer transfered?
Can anybody bring some light on this?
--
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
--
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next prev parent reply other threads:[~2014-01-20 11:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-22 5:59 AM335x USB DMA seems broken on ISOC URBs Ezequiel Garcia
2014-01-17 16:27 ` Ezequiel Garcia
2014-01-18 15:12 ` Daniel Mack
2014-01-20 11:15 ` Daniel Mack
[not found] ` <52DD055C.1090806-cYrQPVfZoowdnm+yROfE0A@public.gmane.org>
2014-01-20 11:25 ` Ezequiel Garcia [this message]
2014-01-20 23:26 ` Ezequiel Garcia
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