d the busy hrtimer loop.
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Sebastian Reimers
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ed USB Host.
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Sebastian Reimers
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Am Freitag, den 07.11.2014, 16:08 +0100 schrieb Sebastian Andrzej
Siewior:
> On 11/07/2014 03:45 PM, Sebastian Reimers wrote:
> > $ /usr/bin/jackd -R -P89 -dalsa -d hw:0,0 -r48000 -p1024 -n3
> >
> > With: kernel.sched_rt_runtime_us = -1
> uhhh. Why do you need this?
I ne
Am Freitag, den 07.11.2014, 15:17 +0100 schrieb Sebastian Andrzej
Siewior:
> On 11/07/2014 02:57 PM, Sebastian Reimers wrote:
> >> b) Both FS and HS audio devices should still function as before, with
> >> no regression regarding CPU load while streaming.
> >
> &
> b) Both FS and HS audio devices should still function as before, with
> no regression regarding CPU load while streaming.
The patch destroys audio quality (pops, clicks and alsa underruns).
Tested with a USB 2.0 (Focusrite) device.
Test case is a simple audio loop:
$ arecord | aplay
Jackd ge
> Sebastian (Reimers), given that you have a good test setup too, any
> chance you can as well do some testing here?
Of course. I can try to reproduce your bug and then retry it with
Sebastian's patch, anything special with the audio setup (sampling rate,
format)?
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Sebast
Hi Xuebing,
> Would you mind to share how did you run the test for both
> Playback/Capture? What host version are you using, as different Host
> enumerates (sends sequences of USB_REQ_SET_INTERFACE request differently)?
sure, on client side (BBB) I have a jackd on top alsa running and
connected
Hi,
> Sebastian, could you give these patches a try? They seem to work well
> on a BBB setup here.
Patch v3 works great on BBB as well with a Audio Loop and 48kHz/16 bit.
No noise or clicks. Tomorrow I have time to test other combinations
(sample-/rate/size).
Sebastian
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hing that is required to provide the
> equivalent of g_audio.ko with configfs.
>
> It is meant for 3.18.
>
> Rebased onto Felipe's testing-next.
Just tested the patches on top 3.17-rc1. Works fine, so:
Tested-by: Sebastian Reimers
Sebastian
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The pcm playback and capture sample size format was fixed
SNDRV_PCM_FMTBIT_S16_LE.
This patch respects also 16, 24 and 32 bit p_ssize and c_ssize values.
Signed-off-by: Sebastian Reimers
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drivers/usb/gadget/f_uac2.c | 24 ++--
1 file changed, 22 insertions(+), 2
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