[LAU] Questions about Cakewalk (Roland) A-500S

[Clemens Ladisch]

Guido Piazzi wrote:
> Il giorno lun, 23/08/2010 alle 11.23 +0200, Clemens Ladisch ha scritto:
> > Guido Piazzi wrote:
> > > I've just bought an A-800Pro. It doesn't seem to work with Linux out of
> > > the box, but it works fine with USB advanced mode disabled.
> > 
> > Please show the output of "lsusb -v" for this device in advanced
> 
>   iManufacturer           1 Roland
>   iProduct                2 A-PRO

Okay, this should work for all the "Pro" keyboards.  I'd guess the 500S
does not have as many MIDI ports ...

Try adding the following entry to sound/usb/quirks-table.h or usbquirks.h:

{
	/* has ID 0x0110 when not in Advanced Driver mode */
	USB_DEVICE_VENDOR_SPEC(0x0582, 0x010f),
	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
		/* .vendor_name = "Roland", */
		/* .product_name = "A-PRO", */
		.ifnum = 1,
		.type = QUIRK_MIDI_FIXED_ENDPOINT,
		.data = & (const struct snd_usb_midi_endpoint_info) {
			.out_cables = 0x0003,
			.in_cables  = 0x0007
		}
	}
},


Regards,
Clemens