From owner-freebsd-multimedia@FreeBSD.ORG  Sun Apr 10 12:44:10 2011
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Date: Sun, 10 Apr 2011 14:38:58 +0200
From: Thierry Thomas <thierry@FreeBSD.org>
To: Hans Petter Selasky <hselasky@c2i.net>
Message-ID: <20110410123858.GG11620@graf.pompo.net>
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Subject: Re: kern/152622: [pcm] uaudio recording problem
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On sun 10 apr 11 at 13:17:16 +0200, Hans Petter Selasky <hselasky@c2i.net>
 wrote:

> > Could you show dmesg with USB debugging on for USB audio while doing this.
> > Maybe the webcam needs to be running before you get audio.
> > 
> 
> Also dump the configuration descriptor for your device using:
> 
> usbconfig -d X.Y dump_curr_config_desc

Here is it:

Apr 10 14:31:40 graf kernel: ugen4.3: <vendor 0x046d> at usbus4
Apr 10 14:31:40 graf kernel: uaudio0: <vendor 0x046d product 0x0825, class 239/2, rev 2.00/0.10, addr 3> on usbus4
Apr 10 14:31:40 graf kernel: uaudio0: No playback!
Apr 10 14:31:40 graf kernel: uaudio0: Record: 48000 Hz, 1 ch, 16-bit S-LE PCM format
Apr 10 14:31:40 graf kernel: uaudio0: No midi sequencer
Apr 10 14:31:40 graf kernel: pcm1: <USB audio> on uaudio0
Apr 10 14:32:16 graf su: thierry to root on /dev/pts/1
Apr 10 14:32:46 graf kernel: uaudio_chan_record_callback: transferred 0 bytes
Apr 10 14:32:51 graf last message repeated 623 times
Apr 10 14:32:51 graf kernel: pcm1: chn_read(): pcm1:virtual:dsp1.vr0: record interrupt timeout, channel dead
Apr 10 14:33:00 graf kernel: uaudio_chan_record_callback: transferred 0 bytes
Apr 10 14:33:05 graf last message repeated 623 times
Apr 10 14:33:05 graf kernel: pcm1: chn_read(): pcm1:virtual:dsp1.vr0: record interrupt timeout, channel dead

# usbconfig -d 4.3 dump_curr_config_desc

ugen4.3: <product 0x0825 vendor 0x046d> at usbus4, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON


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    Interface 1 Alt 1
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      iInterface = 0x0000  <no string>

     Endpoint 0
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        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x00c0 
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        bSynchAddress = 0x0000 


    Interface 1 Alt 2
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     Endpoint 0
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        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0180 
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        bSynchAddress = 0x0000 


    Interface 1 Alt 3
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     Endpoint 0
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        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0200 
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        bRefresh = 0x0000 
        bSynchAddress = 0x0000 


    Interface 1 Alt 4
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      bNumEndpoints = 0x0001 
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      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0280 
        bInterval = 0x0001 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 


    Interface 1 Alt 5
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      bAlternateSetting = 0x0005 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x000e 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0320 
        bInterval = 0x0001 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 


    Interface 1 Alt 6
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      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0001 
      bAlternateSetting = 0x0006 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x000e 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x03b0 
        bInterval = 0x0001 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 


    Interface 1 Alt 7
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      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0001 
      bAlternateSetting = 0x0007 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x000e 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0a80 
        bInterval = 0x0001 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 


    Interface 1 Alt 8
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0001 
      bAlternateSetting = 0x0008 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x000e 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0b20 
        bInterval = 0x0001 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 


    Interface 1 Alt 9
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0001 
      bAlternateSetting = 0x0009 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x000e 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0be0 
        bInterval = 0x0001 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 


    Interface 1 Alt 10
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0001 
      bAlternateSetting = 0x000a 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x000e 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x1380 
        bInterval = 0x0001 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 


    Interface 1 Alt 11
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0001 
      bAlternateSetting = 0x000b 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x000e 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x13fc 
        bInterval = 0x0001 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 

      Additional Descriptor

      bLength = 0x08
      bDescriptorType = 0x0b
      bDescriptorSubType = 0x02
       RAW dump: 
       0x00 | 0x08, 0x0b, 0x02, 0x02, 0x01, 0x02, 0x00, 0x00



    Interface 2
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0002 
      bAlternateSetting = 0x0000 
      bNumEndpoints = 0x0000 
      bInterfaceClass = 0x0001 
      bInterfaceSubClass = 0x0001 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x09, 0x24, 0x01, 0x00, 0x01, 0x26, 0x00, 0x01, 
       0x08 | 0x03

      Additional Descriptor

      bLength = 0x0c
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump: 
       0x00 | 0x0c, 0x24, 0x02, 0x01, 0x01, 0x02, 0x00, 0x01, 
       0x08 | 0x00, 0x00, 0x00, 0x00


      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x03
       RAW dump: 
       0x00 | 0x09, 0x24, 0x03, 0x03, 0x01, 0x01, 0x01, 0x05, 
       0x08 | 0x00

      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump: 
       0x00 | 0x09, 0x24, 0x06, 0x05, 0x01, 0x01, 0x03, 0x00, 
       0x08 | 0x00


    Interface 3
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0003 
      bAlternateSetting = 0x0000 
      bNumEndpoints = 0x0000 
      bInterfaceClass = 0x0001 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>


    Interface 3 Alt 1
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0003 
      bAlternateSetting = 0x0001 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x0001 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x07, 0x24, 0x01, 0x03, 0x01, 0x01, 0x00


      Additional Descriptor

      bLength = 0x0b
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump: 
       0x00 | 0x0b, 0x24, 0x02, 0x01, 0x01, 0x02, 0x10, 0x01, 
       0x08 | 0x80, 0x3e, 0x00


     Endpoint 0
        bLength = 0x0009 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0086  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0044 
        bInterval = 0x0004 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x25
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x07, 0x25, 0x01, 0x01, 0x00, 0x00, 0x00



    Interface 3 Alt 2
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0003 
      bAlternateSetting = 0x0002 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x0001 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x07, 0x24, 0x01, 0x03, 0x01, 0x01, 0x00


      Additional Descriptor

      bLength = 0x0b
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump: 
       0x00 | 0x0b, 0x24, 0x02, 0x01, 0x01, 0x02, 0x10, 0x01, 
       0x08 | 0xc0, 0x5d, 0x00


     Endpoint 0
        bLength = 0x0009 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0086  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0064 
        bInterval = 0x0004 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x25
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x07, 0x25, 0x01, 0x01, 0x00, 0x00, 0x00



    Interface 3 Alt 3
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0003 
      bAlternateSetting = 0x0003 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x0001 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x07, 0x24, 0x01, 0x03, 0x01, 0x01, 0x00


      Additional Descriptor

      bLength = 0x0b
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump: 
       0x00 | 0x0b, 0x24, 0x02, 0x01, 0x01, 0x02, 0x10, 0x01, 
       0x08 | 0x00, 0x7d, 0x00


     Endpoint 0
        bLength = 0x0009 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0086  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0084 
        bInterval = 0x0004 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x25
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x07, 0x25, 0x01, 0x01, 0x00, 0x00, 0x00



    Interface 3 Alt 4
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0003 
      bAlternateSetting = 0x0004 
      bNumEndpoints = 0x0001 
      bInterfaceClass = 0x0001 
      bInterfaceSubClass = 0x0002 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x07, 0x24, 0x01, 0x03, 0x01, 0x01, 0x00


      Additional Descriptor

      bLength = 0x0b
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump: 
       0x00 | 0x0b, 0x24, 0x02, 0x01, 0x01, 0x02, 0x10, 0x01, 
       0x08 | 0x80, 0xbb, 0x00


     Endpoint 0
        bLength = 0x0009 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0086  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x00c4 
        bInterval = 0x0004 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x25
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x07, 0x25, 0x01, 0x01, 0x00, 0x00, 0x00

Best regards,
-- 
Th. Thomas.