Date: Wed, 8 Feb 2012 16:34:04 +0100 From: Hans Petter Selasky <hselasky@c2i.net> To: Purushotham Nayak <nayak_purushotham@yahoo.com> Cc: "freebsd-usb@freebsd.org" <freebsd-usb@freebsd.org> Subject: Re: Bose USB Audio No Playback Message-ID: <201202081634.04941.hselasky@c2i.net> In-Reply-To: <1328659152.54775.YahooMailNeo@web65903.mail.ac4.yahoo.com> References: <1328486659.93108.YahooMailNeo@web65904.mail.ac4.yahoo.com> <201202061805.38647.hselasky@c2i.net> <1328659152.54775.YahooMailNeo@web65903.mail.ac4.yahoo.com>
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On Wednesday 08 February 2012 00:59:12 Purushotham Nayak wrote:
> Hi Hans,
>
>
> When I just run usbconfig I get
> ugen0.2: <Bose USB Audio Bose Corporation> at usbus0, cfg=0 md=HOST
> spd=FULL (12Mbps) pwr=ON
>
> I ran,
> usbconfig -d ugen0.2 dump_device_desc dump_curr_config_desc
> I've attached the output with this e-mail.
>
> I pulled out the bose usb and ran
> sysctl hw.usb.uaudio.debug=15
> and then plugged back in and it's still the same in dmesg. It says No
> Playback. Interesting my mouse stopped working when I did this.
Hi,
Try this command:
sysctl hw.usb.uaudio.default_channels=6
Then replug your device.
Does it work?
You can also set this in:
/boot/loader.conf
I think the problem is that that your device is having a lot of channels, and
should really be using High Speed USB. The device might not work correctly
when connected through a High Speed HUB. Connect it directly to your PC/MAC!
Reference:
/sys/dev/sound/usb/uaudio.c
switch (usbd_get_speed(udev)) {
case USB_SPEED_LOW:
case USB_SPEED_FULL:
/*
* Due to high bandwidth usage and problems
* with HIGH-speed split transactions we
* disable surround setups on FULL-speed USB
* by default
*/
channels = 2;
break;
default:
channels = 16;
break;
}
--HPS
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