Date: Sun, 17 Jul 2011 09:50:11 GMT From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-multimedia@FreeBSD.org Subject: Re: kern/158979: [snd_uadio] snd_uaudio fails to initialize built-in microphone in Logitech Webcam C160 Message-ID: <201107170950.p6H9oB6c082983@freefall.freebsd.org>
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The following reply was made to PR kern/158979; it has been noted by GNATS. From: Hans Petter Selasky <hselasky@c2i.net> To: Dmytro Pryanyshnikov <lynx.ripe@gmail.com> Cc: bug-followup@freebsd.org Subject: Re: kern/158979: [snd_uadio] snd_uaudio fails to initialize built-in microphone in Logitech Webcam C160 Date: Sun, 17 Jul 2011 11:42:43 +0200 On Sunday 17 July 2011 11:31:25 Dmytro Pryanyshnikov wrote: > Hello! > > >From: Hans Petter Selasky <hselasky@c2i.net> > >Date: Sun, 17 Jul 2011 09:45:41 +0200 > >Hi, > > > >Can you try and see if any of the quirks mentioned at the following link > > > >helps: > > http://wiki.freebsd.org/WebcamCompat > > Well, it helps only partially. Indeed, after > > 1) plugging in my Logitech Webcam C160; > 2) running 'pwcview' and exiting from it; > 3) issuing 'usbconfig -d ugen4.2 do_request 0x22 0x01 0x100 0x86 0x03 > 0x80 0xBB 0x00' > > timeout problem has gone, BUT the sensitivity of the microphone > becomes very low (I could only hear knocks on the camera hull, but > almost can't hear my own voice in the recorded samples). And > /dev/mixer3, which corresponds to the webcam microphone, doesn't > affect it's sensitivity at all: > > > dmitry@lynx$ mixer -f /dev/mixer3 > Mixer vol is currently set to 75:75 > Mixer pcm is currently set to 75:75 > > dmitry@lynx$ mixer -f /dev/mixer3 vol 100 pcm 100 > Setting the mixer vol from 75:75 to 100:100. > Setting the mixer pcm from 75:75 to 100:100. > > (doesn't change mic sensitivity) > > dmitry@lynx$ mixer -f /dev/mixer3 vol 0 pcm 0 > Setting the mixer vol from 100:100 to 0:0. > Setting the mixer pcm from 100:100 to 0:0. > > (doesn't change mic sensitivity) > Hi, Can you build a kernel with "options USB_DEBUG" or when using the module to build add "CFLAGS+=-DUSB_DEBUG" in the sys/modules/sound/.../uaudio/Makefile ? Then set: sysctl hw.usb.uaudio.debug=15 Then plug the device and send resulting dmesg. --HPS
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