[alsa-devel] Help needed to develop quirks for USB Sound device for Roland Edirol PC-80 MIDI controller

[Alain Lauzon]

Le vendredi 18 décembre 2009 à 15:19 +0100, Clemens Ladisch a écrit :
> (please don't top-post)
> 
> Alain Lauzon wrote:
> > Bus 001 Device 014: ID 0582:0092 Roland Corp. EDIROL PC-80 WAVE
> > ...
> > Bus 001 Device 013: ID 0582:0093 Roland Corp. EDIROL PC-80 MIDI
> > ...
> 
> This is implemented as two logical devices, so it will show up as two
> ALSA sound cards.
> 
> You didn't show the descriptors for a full-duplex mode, so I'm assuming
> it works like with any other Roland device.
> 
> Please try the following quirk entries:
> 
> {
> 	/* WAVE part only; see ID 0x0093 for MIDI */
> 	USB_DEVICE(0x0582, 0x0092),
> 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
> 		/* .vendor_name = "EDIROL", */
> 		/* .product_name = "PC-80", */
> 		.ifnum = QUIRK_ANY_INTERFACE,
> 		.type = QUIRK_COMPOSITE,
> 		.data = (const struct snd_usb_audio_quirk[]) {
> 			{
> 				.ifnum = 0,
> 				.type = QUIRK_AUDIO_STANDARD_INTERFACE
> 			},
> 			{
> 				.ifnum = 1,
> 				.type = QUIRK_AUDIO_STANDARD_INTERFACE
> 			},
> 			{
> 				.ifnum = -1
> 			}
> 		}
> 	}
> },
> {
> 	/* MIDI part only; see ID 0x0092 for WAVE */
> 	USB_DEVICE(0x0582, 0x0093),
> 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
> 		/* .vendor_name = "EDIROL", */
> 		/* .product_name = "PC-80", */
> 		.ifnum = 0,
> 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
> 		.data = & (const struct snd_usb_midi_endpoint_info) {
> 			.out_cables = 0x0000,
> 			.in_cables = 0x0003,
> 		}
> 	}
> },
> --

Another question I have is is there a way to modify the quirk and try it
without having to reboot my computer?  I have tried restarting ALSA but
it was not giving me the changes so I keep rebooting my computer with
every try I do on the quirks file.

Alain Lauzon

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