On Tue, 20 Aug 2002, Pedro Lopez-Cabanillas wrote:
> El Mar 20 Ago 2002 10:10, Clemens Ladisch escribió:
> > IMHO there's nothing wrong with loading the driver when the keyboard is
> > plugged in. I'd suggest to list only the OSS drivers in the blacklist file.
>
> Hotplug can't load the snd-usb-midi module, except for the vendor/product ids
> listed in MODULE_DEVICE_TABLE(usb, snd_usbmidi_usb_id_table). Michael has an
> Evolution keyboard, a standard USB class compliant device, AFAIK.
>
> Hotplug only looks for the first interface descriptor found for each device.

This is true for the user mode hotplug call only (e.g., for the daemon).
For kernel drivers, Linux checks all interfaces.

> The only workaround I know for now, is blacklist snd-usb-audio module and
> load snd-usb-midi by hand or like any other ALSA module: kmod + modules.conf

It isn't necessary to blacklist the snd-usb-audio module (see above).

Martin Langer reported that his Evolution keyboard works.


Regards,
Clemens



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