alsa-firmware loader fails for tascam us-122 (and probably others)

[cannam]

The Tascam firmware loader in the alsa-firmware package (1.0.16-0medibuntu1) does not work for me. It fails to load the firmware when a Tascam US-122 audio interface is connected.

There appear to be two places where /lib/udev/tascam_fw is incompatible with Hardy:

 * the firmware directory is wrong: the script has ${prefix}/share/alsa/firmware, but the package installed the firmware in /lib/firmware

 * the call to fxload fails to provide the device path, so fxload falls back to a nonexistent /proc/bus/usb/... path from the DEVICE environment variable instead of the correct /dev/bus/usb/... found in DEVNAME

The attached patch fixes the problem for me.

Chris

[cannam (cannam)]

I have just realised that /lib/udev/tascam_fw comes from alsa-firmware-loaders (which appears to be an Ubuntu package) not alsa-firmware (which is a Medibuntu package). So this report might be misplaced. Since I don't really know whether it is, or where else it should be, or whether it's strictly valid or not, I hope you don't mind if I just leave it here and hope that someone who knows better happens to review it.

[Lionel Le Folgoc (mrpouit)]

Yes, that's a bug in the alsa-firmware-loaders package, which seems to be incompletely patched (debian/patches/firmware_locations.patch).

I guess I'll put a symbolic link in alsa-firmware between the two directories until the issue is fixed in alsa-firmware-loaders.

[David Henningsson (diwic)]

Looking at current code, the devname seems fixed, but not the /lib/firmware thing.