Frank Barknecht wrote:
> Now I discovered a teenytiny switch on the back if the UA-3 FX that
> switches the "Advanced Driver" features of the device on or off.
> Setting this to OFF, I now got ALSA to recognize the device as a
> simple 44100 Hz device. No higher samplerates, though.
> Probably a quirk is needed?
The descriptors in "advanced" mode look like this:
> unknown descriptor type: 0b 24 02 01 02 03 18 01 44 ac 00
which is 24 bits at 44.1 kHz. Probably there is another switch for
the sample rate. :-)
The device has another interface (3) without any descriptors. You
wouldn't know, just by chance, if the Windows driver offers some MIDI
port, or some device-specific control application for the effects?
Regards,
Clemens
--
add UA-3FX support
Index: alsa-kernel/usb/usbquirks.h
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/usb/usbquirks.h,v
retrieving revision 1.27
diff -u -r1.27 usbquirks.h
--- alsa-kernel/usb/usbquirks.h 11 Feb 2004 12:15:55 -0000 1.27
+++ alsa-kernel/usb/usbquirks.h 12 Feb 2004 11:19:01 -0000
@@ -502,6 +502,32 @@
}
},
{
+ /*
+ * This quirk is for the "Advanced Driver" mode. If off, the UA-3FX
+ * is standard compliant, but has only 16-bit PCM.
+ */
+ USB_DEVICE(0x0582, 0x0050),
+ .driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+ .vendor_name = "EDIROL",
+ .product_name = "UA-3FX",
+ .ifnum = QUIRK_ANY_INTERFACE,
+ .type = QUIRK_COMPOSITE,
+ .data = & (const snd_usb_audio_quirk_t[]) {
+ {
+ .ifnum = 1,
+ .type = QUIRK_AUDIO_STANDARD_INTERFACE
+ },
+ {
+ .ifnum = 2,
+ .type = QUIRK_AUDIO_STANDARD_INTERFACE
+ },
+ {
+ .ifnum = -1
+ }
+ }
+ }
+},
+{
USB_DEVICE(0x0582, 0x0052),
.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
.vendor_name = "EDIROL",
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