Re: usb/183409: USB Class 2 audio device playback issue

[Hans Petter Selasky]

The following reply was made to PR usb/183409; it has been noted by GNATS.

From: Hans Petter Selasky h...@bitfrost.no
To: Taner taner76gmail@freebsd.org
Cc: freebsd-gnats-sub...@freebsd.org
Subject: Re: usb/183409: USB Class 2 audio device playback issue
Date: Mon, 28 Oct 2013 19:23:28 +0100

 On 10/28/13 17:17, Taner wrote:
 
  Number: 183409
  Category:   usb
  Synopsis:   USB Class 2 audio device playback issue
  Confidential:   no
  Severity:   non-critical
  Priority:   low
  Responsible:freebsd-usb
  State:  open
  Quarter:
  Keywords:
  Date-Required:
  Class:  sw-bug
  Submitter-Id:   current-users
  Arrival-Date:   Mon Oct 28 16:20:00 UTC 2013
  Closed-Date:
  Last-Modified:
  Originator: Taner
  Release:10.0-BETA1
  Organization:
  Environment:
  FreeBSD bsd 10.0-BETA1 FreeBSD 10.0-BETA1 #2 r256773M: Sun Oct 20 20:52:31 
  EEST 2013 root@bsd:/usr/obj/usr/src/sys/GENERIC  amd64
  Description:
  My asyncronous USB to I2S interface (http://amanero.com/) has detected on a 
  amd64 FreeBSD-10.0-BETA1 system. But playback is crackling like old vinyl 
  records.
 
  I haven't similar issues with other operating systems.
 
  With enabling debug, lots of these error messages appear on dmesg output:
 
  uaudio_chan_play_sync_callback: Value = 0x0005fff8
  uaudio_chan_play_sync_callback: Comparing 47998  48000
  uaudio_chan_play_sync_callback: Value = 0x0005fff6
  uaudio_chan_play_sync_callback: Comparing 47998  48000
 
  or
 
  uaudio_chan_play_sync_callback: Value = 0x000bfff0
  uaudio_chan_play_sync_callback: Comparing 95997  96000
  uaudio_chan_play_sync_callback: Value = 0x000bfff0
  uaudio_chan_play_sync_callback: Comparing 95997  96000
 
  --- dmesg output while device attached
 
  uaudio0: at uhub1, port 3, addr 1 (disconnected)
  pcm0: detached
  uaudio0: Amanero Technologies Combo384 Amanero, class 239/2, rev
  2.00/1.80, addr 1 on usbus0
  uaudio0: Play: 96000 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
  uaudio0: Play: 88200 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
  uaudio0: Play: 48000 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
  uaudio0: Play: 44100 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
  uaudio0: Play: 32000 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
  uaudio0: No recording.
  uaudio0: No MIDI sequencer.
  pcm0: USB audio on uaudio0
  uaudio0: No HID volume keys found.
  How-To-Repeat:
  Playback any audio file/stream.
  Fix:
 
 Hi,
 
 Can you add output from usbconfig -d X.Y dump_device_desc 
 dump_curr_config_desc and lsusb -vv from /usr/ports/sysutils/usbutils
 
 Also, is the device directly connected to the USB port? No hub in between.
 
 Did you try other sample and bit rates by setting the sysctls below?
 
 hw.usb.uaudio.default_channels: 0
 hw.usb.uaudio.default_bits: 32
 hw.usb.uaudio.default_rate: 0
 
 default_bits=16, 24
 default_rate=48000
 
 --HPS
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Re: usb/183409: USB Class 2 audio device playback issue

[linimon]

Synopsis: USB Class 2 audio device playback issue

State-Changed-From-To: open-feedback
State-Changed-By: linimon
State-Changed-When: Tue Oct 29 00:53:14 UTC 2013
State-Changed-Why: 
Set to feedback.  Partially this is to notify the submitter of hps' followup,
which he or she will most likely not have seen, as a result of a managled
From: address.

http://www.freebsd.org/cgi/query-pr.cgi?pr=183409
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