From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Date: Sat, 30 Apr 2005 05:23:14 +0000 Subject: Re: snd-usb-audio driver (Was Re: udev: rules using multiple sysfs directories) Message-Id: <20050430052314.GA10104@kroah.com> List-Id: References: <1114808502.14228.10.camel@daxter.boston.redhat.com> In-Reply-To: <1114808502.14228.10.camel@daxter.boston.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org On Fri, Apr 29, 2005 at 05:01:42PM -0400, David Zeuthen wrote: > On Fri, 2005-04-29 at 13:09 -0700, Greg KH wrote: > > You can do this, as you get two different hotplug events. This is > > because usb drivers bind to the USB inteface, not the main device > > itself. > > As an unrelated note this is actually not true for snd-usb-audio driver > > [davidz@daxter hal]$ ls -l /sys/class/sound/pcmC2D0c/ > total 0 > -r--r--r-- 1 root root 4096 Apr 29 16:57 dev > lrwxrwxrwx 1 root root 0 Apr 29 16:57 device -> ../../../devices/pci0000:00/0000:00:1d.1/usb3/3-2 This should point to the interface, not the device, you are correct. > [davidz@daxter hal]$ ls -l /sys/class/sound/pcmC2D0c/device/ > total 0 > drwxr-xr-x 3 root root 0 Apr 29 16:57 3-2:1.0 > drwxr-xr-x 3 root root 0 Apr 29 16:57 3-2:1.1 > drwxr-xr-x 3 root root 0 Apr 29 16:57 3-2:1.2 > drwxr-xr-x 3 root root 0 Apr 29 16:57 3-2:1.3 > > Well, sort of, as > > [davidz@daxter hal]$ tree /sys/bus/usb/drivers/snd-usb-audio/ > /sys/bus/usb/drivers/snd-usb-audio/ > |-- 3-2:1.0 -> ../../../../devices/pci0000:00/0000:00:1d.1/usb3/3-2/3-2:1.0 > |-- 3-2:1.1 -> ../../../../devices/pci0000:00/0000:00:1d.1/usb3/3-2/3-2:1.1 > |-- 3-2:1.2 -> ../../../../devices/pci0000:00/0000:00:1d.1/usb3/3-2/3-2:1.2 > `-- module -> ../../../../module/snd_usb_audio > > That's a bug, right? Is this the right place to report it? Bug in the alsa driver, I suggest reporting it to them. Should be a one line fix. thanks, greg k-h ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. Get your fingers limbered up and give it your best shot. 4 great events, 4 opportunities to win big! Highest score wins.NEC IT Guy Games. Play to win an NEC 61 plasma display. Visit http://www.necitguy.com/?r _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel