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Commit f38275fe authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Jaroslav Kysela
Browse files

[ALSA] usb-audio - add support for Miditech USB MIDI keyboards 



USB generic driver
Add support for Miditech Midistart and MidiStudio keyboards (another
case of devices using the standard protocol but having no descriptors).

Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
parent d06e4c40

sound/usb/usbaudio.c

+1 −0
Original line number Diff line number Diff line
@@ -2972,6 +2972,7 @@ static int snd_usb_create_quirk(snd_usb_audio_t *chip, 
	case QUIRK_MIDI_NOVATION:

	case QUIRK_MIDI_RAW:

	case QUIRK_MIDI_EMAGIC:

	case QUIRK_MIDI_MIDITECH:

		return snd_usb_create_midi_interface(chip, iface, quirk);

	case QUIRK_COMPOSITE:

		return create_composite_quirk(chip, iface, quirk);

sound/usb/usbaudio.h

+3 −0
Original line number Diff line number Diff line
@@ -167,6 +167,7 @@ struct snd_usb_audio { 
#define QUIRK_MIDI_NOVATION		10

#define QUIRK_MIDI_RAW			11

#define QUIRK_MIDI_EMAGIC		12

#define QUIRK_MIDI_MIDITECH		13



typedef struct snd_usb_audio_quirk snd_usb_audio_quirk_t;

typedef struct snd_usb_midi_endpoint_info snd_usb_midi_endpoint_info_t;
@@ -210,6 +211,8 @@ struct snd_usb_midi_endpoint_info { 
/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info

 * structure (out_cables and in_cables only) */



/* for QUIRK_MIDI_MIDITECH, data is NULL */



/*

 */

sound/usb/usbmidi.c

+3 −0
Original line number Diff line number Diff line
@@ -1515,6 +1515,9 @@ int snd_usb_create_midi_interface(snd_usb_audio_t* chip, 
			       sizeof(snd_usb_midi_endpoint_info_t));

			err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1);

			break;

		case QUIRK_MIDI_MIDITECH:

			err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);

			break;

		default:

			snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);

			err = -ENXIO;

sound/usb/usbquirks.h

+19 −0
Original line number Diff line number Diff line
@@ -1378,6 +1378,25 @@ YAMAHA_DEVICE(0x7010, "UB99"), 
	}

},



{

	USB_DEVICE(0x4752, 0x0011),

	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {

		.vendor_name = "Miditech",

		.product_name = "Midistart-2",

		.ifnum = 0,

		.type = QUIRK_MIDI_MIDITECH

	}

},

{

	USB_DEVICE(0x7104, 0x2202),

	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {

		.vendor_name = "Miditech",

		.product_name = "MidiStudio-2",

		.ifnum = 0,

		.type = QUIRK_MIDI_MIDITECH

	}

},



{

	/*

	 * Some USB MIDI devices don't have an audio control interface,