From: Clemens Ladisch <clemens@ladisch.de>
To: Adrian Stancu <adrian.stancu.82@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: snd-usb-audio syncronisation problem
Date: Tue, 26 Feb 2008 15:21:45 +0100 [thread overview]
Message-ID: <47C42079.2030102@ladisch.de> (raw)
In-Reply-To: <43e8c7320802260453m45c55ba5gb1756e288bf90808@mail.gmail.com>
Adrian Stancu wrote:
> I see, you say that the device knows what sample rate it is supposed
> to use, and that this rate should be automatically used.
Not automatically, the driver sets an alternate setting in set_format()
by calling usb_set_interface().
> ...
> 2) I logically connect the device to the virtual machine, set the
> sampling rate to 96k through the creative supplied drivers,
Apparently, that driver uses some vendor-specific request to configure
the device. To find out what exactly that driver does, you'd have to
use a tool like usbsnoop to record the USB requests.
Regards,
Clemens
next prev parent reply other threads:[~2008-02-26 14:20 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-22 9:51 snd-usb-audio syncronisation problem Adrian Stancu
2008-02-22 13:09 ` Clemens Ladisch
2008-02-22 13:45 ` Adrian Stancu
2008-02-22 13:57 ` Clemens Ladisch
2008-02-22 14:19 ` Adrian Stancu
2008-02-22 14:43 ` Clemens Ladisch
2008-02-22 14:51 ` Adrian Stancu
2008-02-22 15:05 ` ASoC AT91 : read dma buffer Alexandre BOUIN
2008-02-22 15:50 ` snd-usb-audio syncronisation problem Clemens Ladisch
2008-02-22 16:15 ` Adrian Stancu
2008-02-22 16:31 ` Clemens Ladisch
2008-02-22 16:46 ` Adrian Stancu
2008-02-22 16:49 ` Adrian Stancu
2008-02-22 17:01 ` Clemens Ladisch
2008-02-22 17:02 ` Adrian Stancu
2008-02-25 12:44 ` Clemens Ladisch
2008-02-25 18:32 ` Adrian Stancu
2008-02-26 7:32 ` Clemens Ladisch
2008-02-26 7:53 ` Adrian Stancu
2008-02-26 8:14 ` Clemens Ladisch
2008-02-26 8:38 ` Adrian Stancu
2008-02-26 8:49 ` Clemens Ladisch
2008-02-26 9:20 ` Adrian Stancu
2008-02-26 11:36 ` Clemens Ladisch
2008-02-26 12:53 ` Adrian Stancu
2008-02-26 14:21 ` Clemens Ladisch [this message]
2008-02-26 15:08 ` Adrian Stancu
2008-02-26 13:45 ` Pavel Hofman
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