Bug 174835 - [uaudio] uaudio fails to create pcm/dsp device file
Summary: [uaudio] uaudio fails to create pcm/dsp device file
Status: Open
Alias: None
Product: Base System
Classification: Unclassified
Component: usb (show other bugs)
Version: 9.0-RELEASE
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-usb mailing list
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-12-30 16:30 UTC by Martin Laabs
Modified: 2018-01-03 05:16 UTC (History)
0 users

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Description Martin Laabs 2012-12-30 16:30:00 UTC
Ŵhen attaching my USB soundcard the kernel detects the device to be handles by the uaudio driver. It detects it correct as you can see in the dmesg-log below. 
The driver also creates a mixer device (mixer3 in my case)
However - it does not create a additional pcm/dsp device to get the actual sound data in and out.
The device worked for me in 8.0 versions of BSD without problems.

-------------:<--------------
ugen0.2: <vendor 0x0d8c> at usbus0
uaudio0: <vendor 0x0d8c USB Sound Device, class 0/0, rev 1.10/0.10, addr 2> on usbus0
uaudio0: Play: 48000 Hz, 2 ch, 16-bit S-LE PCM format
uaudio0: Record: 48000 Hz, 2 ch, 16-bit S-LE PCM format
uaudio0: No midi sequencer
pcm2: <USB audio> on uaudio0
uhid2: <vendor 0x0d8c USB Sound Device, class 0/0, rev 1.10/0.10, addr 2> on usbus0
-------------:<--------------

How-To-Repeat: Attach a device supported by uaudio and look for a new created dsp device
Comment 1 Martin Laabs 2012-12-30 16:54:42 UTC
Hello,

sorry - the device actually is there but it is not visible after plugging
in. Accessing it one time make the device also visible in the devfs.

Thank you,
 Martin
Comment 2 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 08:01:25 UTC
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

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