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Diffstat (limited to 'sound/usb/midi.c')
-rw-r--r--sound/usb/midi.c238
1 files changed, 181 insertions, 57 deletions
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index b4b39c0b6c9..9da74d2e8ee 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -47,6 +47,7 @@
#include <linux/usb.h>
#include <linux/wait.h>
#include <linux/usb/audio.h>
+#include <linux/module.h>
#include <sound/core.h>
#include <sound/control.h>
@@ -115,6 +116,7 @@ struct snd_usb_midi {
struct list_head list;
struct timer_list error_timer;
spinlock_t disc_lock;
+ struct rw_semaphore disc_rwsem;
struct mutex mutex;
u32 usb_id;
int next_midi_device;
@@ -124,8 +126,9 @@ struct snd_usb_midi {
struct snd_usb_midi_in_endpoint *in;
} endpoints[MIDI_MAX_ENDPOINTS];
unsigned long input_triggered;
- unsigned int opened;
+ unsigned int opened[2];
unsigned char disconnected;
+ unsigned char input_running;
struct snd_kcontrol *roland_load_ctl;
};
@@ -188,16 +191,16 @@ static int snd_usbmidi_submit_urb(struct urb* urb, gfp_t flags)
{
int err = usb_submit_urb(urb, flags);
if (err < 0 && err != -ENODEV)
- snd_printk(KERN_ERR "usb_submit_urb: %d\n", err);
+ dev_err(&urb->dev->dev, "usb_submit_urb: %d\n", err);
return err;
}
/*
* Error handling for URB completion functions.
*/
-static int snd_usbmidi_urb_error(int status)
+static int snd_usbmidi_urb_error(const struct urb *urb)
{
- switch (status) {
+ switch (urb->status) {
/* manually unlinked, or device gone */
case -ENOENT:
case -ECONNRESET:
@@ -210,7 +213,7 @@ static int snd_usbmidi_urb_error(int status)
case -EILSEQ:
return -EIO;
default:
- snd_printk(KERN_ERR "urb status %d\n", status);
+ dev_err(&urb->dev->dev, "urb status %d\n", urb->status);
return 0; /* continue */
}
}
@@ -224,7 +227,7 @@ static void snd_usbmidi_input_data(struct snd_usb_midi_in_endpoint* ep, int port
struct usbmidi_in_port* port = &ep->ports[portidx];
if (!port->substream) {
- snd_printd("unexpected port %d!\n", portidx);
+ dev_dbg(&ep->umidi->dev->dev, "unexpected port %d!\n", portidx);
return;
}
if (!test_bit(port->substream->number, &ep->umidi->input_triggered))
@@ -256,7 +259,7 @@ static void snd_usbmidi_in_urb_complete(struct urb* urb)
ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer,
urb->actual_length);
} else {
- int err = snd_usbmidi_urb_error(urb->status);
+ int err = snd_usbmidi_urb_error(urb);
if (err < 0) {
if (err != -ENODEV) {
ep->error_resubmit = 1;
@@ -286,7 +289,7 @@ static void snd_usbmidi_out_urb_complete(struct urb* urb)
}
spin_unlock(&ep->buffer_lock);
if (urb->status < 0) {
- int err = snd_usbmidi_urb_error(urb->status);
+ int err = snd_usbmidi_urb_error(urb);
if (err < 0) {
if (err != -ENODEV)
mod_timer(&ep->umidi->error_timer,
@@ -816,6 +819,22 @@ static struct usb_protocol_ops snd_usbmidi_raw_ops = {
.output = snd_usbmidi_raw_output,
};
+/*
+ * FTDI protocol: raw MIDI bytes, but input packets have two modem status bytes.
+ */
+
+static void snd_usbmidi_ftdi_input(struct snd_usb_midi_in_endpoint* ep,
+ uint8_t* buffer, int buffer_length)
+{
+ if (buffer_length > 2)
+ snd_usbmidi_input_data(ep, 0, buffer + 2, buffer_length - 2);
+}
+
+static struct usb_protocol_ops snd_usbmidi_ftdi_ops = {
+ .input = snd_usbmidi_ftdi_input,
+ .output = snd_usbmidi_raw_output,
+};
+
static void snd_usbmidi_us122l_input(struct snd_usb_midi_in_endpoint *ep,
uint8_t *buffer, int buffer_length)
{
@@ -1015,29 +1034,48 @@ static void update_roland_altsetting(struct snd_usb_midi* umidi)
snd_usbmidi_input_start(&umidi->list);
}
-static void substream_open(struct snd_rawmidi_substream *substream, int open)
+static int substream_open(struct snd_rawmidi_substream *substream, int dir,
+ int open)
{
struct snd_usb_midi* umidi = substream->rmidi->private_data;
struct snd_kcontrol *ctl;
+ down_read(&umidi->disc_rwsem);
+ if (umidi->disconnected) {
+ up_read(&umidi->disc_rwsem);
+ return open ? -ENODEV : 0;
+ }
+
mutex_lock(&umidi->mutex);
if (open) {
- if (umidi->opened++ == 0 && umidi->roland_load_ctl) {
- ctl = umidi->roland_load_ctl;
- ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
- snd_ctl_notify(umidi->card,
+ if (!umidi->opened[0] && !umidi->opened[1]) {
+ if (umidi->roland_load_ctl) {
+ ctl = umidi->roland_load_ctl;
+ ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ snd_ctl_notify(umidi->card,
SNDRV_CTL_EVENT_MASK_INFO, &ctl->id);
- update_roland_altsetting(umidi);
+ update_roland_altsetting(umidi);
+ }
}
+ umidi->opened[dir]++;
+ if (umidi->opened[1])
+ snd_usbmidi_input_start(&umidi->list);
} else {
- if (--umidi->opened == 0 && umidi->roland_load_ctl) {
- ctl = umidi->roland_load_ctl;
- ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
- snd_ctl_notify(umidi->card,
+ umidi->opened[dir]--;
+ if (!umidi->opened[1])
+ snd_usbmidi_input_stop(&umidi->list);
+ if (!umidi->opened[0] && !umidi->opened[1]) {
+ if (umidi->roland_load_ctl) {
+ ctl = umidi->roland_load_ctl;
+ ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ snd_ctl_notify(umidi->card,
SNDRV_CTL_EVENT_MASK_INFO, &ctl->id);
+ }
}
}
mutex_unlock(&umidi->mutex);
+ up_read(&umidi->disc_rwsem);
+ return 0;
}
static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream)
@@ -1045,7 +1083,6 @@ static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream)
struct snd_usb_midi* umidi = substream->rmidi->private_data;
struct usbmidi_out_port* port = NULL;
int i, j;
- int err;
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i)
if (umidi->endpoints[i].out)
@@ -1058,22 +1095,15 @@ static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream)
snd_BUG();
return -ENXIO;
}
- err = usb_autopm_get_interface(umidi->iface);
- if (err < 0)
- return -EIO;
+
substream->runtime->private_data = port;
port->state = STATE_UNKNOWN;
- substream_open(substream, 1);
- return 0;
+ return substream_open(substream, 0, 1);
}
static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream)
{
- struct snd_usb_midi* umidi = substream->rmidi->private_data;
-
- substream_open(substream, 0);
- usb_autopm_put_interface(umidi->iface);
- return 0;
+ return substream_open(substream, 0, 0);
}
static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, int up)
@@ -1126,14 +1156,12 @@ static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream)
static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream)
{
- substream_open(substream, 1);
- return 0;
+ return substream_open(substream, 1, 1);
}
static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream)
{
- substream_open(substream, 0);
- return 0;
+ return substream_open(substream, 1, 0);
}
static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream *substream, int up)
@@ -1301,6 +1329,7 @@ static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi,
case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */
case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */
case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */
+ case USB_ID(0xfc08, 0x0101): /* Unknown vendor Cable */
ep->max_transfer = 4;
break;
/*
@@ -1381,9 +1410,12 @@ void snd_usbmidi_disconnect(struct list_head* p)
* a timer may submit an URB. To reliably break the cycle
* a flag under lock must be used
*/
+ down_write(&umidi->disc_rwsem);
spin_lock_irq(&umidi->disc_lock);
umidi->disconnected = 1;
spin_unlock_irq(&umidi->disc_lock);
+ up_write(&umidi->disc_rwsem);
+
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
if (ep->out)
@@ -1412,6 +1444,7 @@ void snd_usbmidi_disconnect(struct list_head* p)
}
del_timer_sync(&umidi->error_timer);
}
+EXPORT_SYMBOL(snd_usbmidi_disconnect);
static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi)
{
@@ -1422,10 +1455,9 @@ static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi)
static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi* umidi,
int stream, int number)
{
- struct list_head* list;
+ struct snd_rawmidi_substream *substream;
- list_for_each(list, &umidi->rmidi->streams[stream].substreams) {
- struct snd_rawmidi_substream *substream = list_entry(list, struct snd_rawmidi_substream, list);
+ list_for_each_entry(substream, &umidi->rmidi->streams[stream].substreams, list) {
if (substream->number == number)
return substream;
}
@@ -1543,8 +1575,41 @@ static struct port_info {
EXTERNAL_PORT(0x0582, 0x004d, 0, "%s MIDI"),
EXTERNAL_PORT(0x0582, 0x004d, 1, "%s 1"),
EXTERNAL_PORT(0x0582, 0x004d, 2, "%s 2"),
+ /* BOSS GT-PRO */
+ CONTROL_PORT(0x0582, 0x0089, 0, "%s Control"),
/* Edirol UM-3EX */
CONTROL_PORT(0x0582, 0x009a, 3, "%s Control"),
+ /* Roland VG-99 */
+ CONTROL_PORT(0x0582, 0x00b2, 0, "%s Control"),
+ EXTERNAL_PORT(0x0582, 0x00b2, 1, "%s MIDI"),
+ /* Cakewalk Sonar V-Studio 100 */
+ EXTERNAL_PORT(0x0582, 0x00eb, 0, "%s MIDI"),
+ CONTROL_PORT(0x0582, 0x00eb, 1, "%s Control"),
+ /* Roland VB-99 */
+ CONTROL_PORT(0x0582, 0x0102, 0, "%s Control"),
+ EXTERNAL_PORT(0x0582, 0x0102, 1, "%s MIDI"),
+ /* Roland A-PRO */
+ EXTERNAL_PORT(0x0582, 0x010f, 0, "%s MIDI"),
+ CONTROL_PORT(0x0582, 0x010f, 1, "%s 1"),
+ CONTROL_PORT(0x0582, 0x010f, 2, "%s 2"),
+ /* Roland SD-50 */
+ ROLAND_SYNTH_PORT(0x0582, 0x0114, 0, "%s Synth", 128),
+ EXTERNAL_PORT(0x0582, 0x0114, 1, "%s MIDI"),
+ CONTROL_PORT(0x0582, 0x0114, 2, "%s Control"),
+ /* Roland OCTA-CAPTURE */
+ EXTERNAL_PORT(0x0582, 0x0120, 0, "%s MIDI"),
+ CONTROL_PORT(0x0582, 0x0120, 1, "%s Control"),
+ EXTERNAL_PORT(0x0582, 0x0121, 0, "%s MIDI"),
+ CONTROL_PORT(0x0582, 0x0121, 1, "%s Control"),
+ /* Roland SPD-SX */
+ CONTROL_PORT(0x0582, 0x0145, 0, "%s Control"),
+ EXTERNAL_PORT(0x0582, 0x0145, 1, "%s MIDI"),
+ /* Roland A-Series */
+ CONTROL_PORT(0x0582, 0x0156, 0, "%s Keyboard"),
+ EXTERNAL_PORT(0x0582, 0x0156, 1, "%s MIDI"),
+ /* Roland INTEGRA-7 */
+ ROLAND_SYNTH_PORT(0x0582, 0x015b, 0, "%s Synth", 128),
+ CONTROL_PORT(0x0582, 0x015b, 1, "%s Control"),
/* M-Audio MidiSport 8x8 */
CONTROL_PORT(0x0763, 0x1031, 8, "%s Control"),
CONTROL_PORT(0x0763, 0x1033, 8, "%s Control"),
@@ -1603,7 +1668,7 @@ static void snd_usbmidi_init_substream(struct snd_usb_midi* umidi,
struct snd_rawmidi_substream *substream = snd_usbmidi_find_substream(umidi, stream, number);
if (!substream) {
- snd_printd(KERN_ERR "substream %d:%d not found\n", stream, number);
+ dev_err(&umidi->dev->dev, "substream %d:%d not found\n", stream, number);
return;
}
@@ -1652,7 +1717,7 @@ static int snd_usbmidi_create_endpoints(struct snd_usb_midi* umidi,
}
}
}
- snd_printdd(KERN_INFO "created %d output and %d input ports\n",
+ dev_dbg(&umidi->dev->dev, "created %d output and %d input ports\n",
out_ports, in_ports);
return 0;
}
@@ -1682,10 +1747,11 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
ms_header->bLength >= 7 &&
ms_header->bDescriptorType == USB_DT_CS_INTERFACE &&
ms_header->bDescriptorSubtype == UAC_HEADER)
- snd_printdd(KERN_INFO "MIDIStreaming version %02x.%02x\n",
+ dev_dbg(&umidi->dev->dev, "MIDIStreaming version %02x.%02x\n",
ms_header->bcdMSC[1], ms_header->bcdMSC[0]);
else
- snd_printk(KERN_WARNING "MIDIStreaming interface descriptor not found\n");
+ dev_warn(&umidi->dev->dev,
+ "MIDIStreaming interface descriptor not found\n");
epidx = 0;
for (i = 0; i < intfd->bNumEndpoints; ++i) {
@@ -1702,7 +1768,8 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
if (usb_endpoint_dir_out(ep)) {
if (endpoints[epidx].out_ep) {
if (++epidx >= MIDI_MAX_ENDPOINTS) {
- snd_printk(KERN_WARNING "too many endpoints\n");
+ dev_warn(&umidi->dev->dev,
+ "too many endpoints\n");
break;
}
}
@@ -1717,12 +1784,13 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
*/
endpoints[epidx].out_interval = 1;
endpoints[epidx].out_cables = (1 << ms_ep->bNumEmbMIDIJack) - 1;
- snd_printdd(KERN_INFO "EP %02X: %d jack(s)\n",
+ dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n",
ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack);
} else {
if (endpoints[epidx].in_ep) {
if (++epidx >= MIDI_MAX_ENDPOINTS) {
- snd_printk(KERN_WARNING "too many endpoints\n");
+ dev_warn(&umidi->dev->dev,
+ "too many endpoints\n");
break;
}
}
@@ -1732,7 +1800,7 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW)
endpoints[epidx].in_interval = 1;
endpoints[epidx].in_cables = (1 << ms_ep->bNumEmbMIDIJack) - 1;
- snd_printdd(KERN_INFO "EP %02X: %d jack(s)\n",
+ dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n",
ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack);
}
}
@@ -1800,7 +1868,7 @@ static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi* umidi)
(get_endpoint(hostif, 1)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
return;
- snd_printdd(KERN_INFO "switching to altsetting %d with int ep\n",
+ dev_dbg(&umidi->dev->dev, "switching to altsetting %d with int ep\n",
intfd->bAlternateSetting);
usb_set_interface(umidi->dev, intfd->bInterfaceNumber,
intfd->bAlternateSetting);
@@ -1916,6 +1984,44 @@ static int snd_usbmidi_detect_yamaha(struct snd_usb_midi* umidi,
}
/*
+ * Detects the endpoints and ports of Roland devices.
+ */
+static int snd_usbmidi_detect_roland(struct snd_usb_midi* umidi,
+ struct snd_usb_midi_endpoint_info* endpoint)
+{
+ struct usb_interface* intf;
+ struct usb_host_interface *hostif;
+ u8* cs_desc;
+
+ intf = umidi->iface;
+ if (!intf)
+ return -ENOENT;
+ hostif = intf->altsetting;
+ /*
+ * Some devices have a descriptor <06 24 F1 02 <inputs> <outputs>>,
+ * some have standard class descriptors, or both kinds, or neither.
+ */
+ for (cs_desc = hostif->extra;
+ cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2;
+ cs_desc += cs_desc[0]) {
+ if (cs_desc[0] >= 6 &&
+ cs_desc[1] == USB_DT_CS_INTERFACE &&
+ cs_desc[2] == 0xf1 &&
+ cs_desc[3] == 0x02) {
+ endpoint->in_cables = (1 << cs_desc[4]) - 1;
+ endpoint->out_cables = (1 << cs_desc[5]) - 1;
+ return snd_usbmidi_detect_endpoints(umidi, endpoint, 1);
+ } else if (cs_desc[0] >= 7 &&
+ cs_desc[1] == USB_DT_CS_INTERFACE &&
+ cs_desc[2] == UAC_HEADER) {
+ return snd_usbmidi_get_ms_info(umidi, endpoint);
+ }
+ }
+
+ return -ENODEV;
+}
+
+/*
* Creates the endpoints and their ports for Midiman devices.
*/
static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi* umidi,
@@ -1944,25 +2050,25 @@ static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi* umidi,
* input bulk endpoints (at indices 1 and 3) which aren't used.
*/
if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) {
- snd_printdd(KERN_ERR "not enough endpoints\n");
+ dev_dbg(&umidi->dev->dev, "not enough endpoints\n");
return -ENOENT;
}
epd = get_endpoint(hostif, 0);
if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) {
- snd_printdd(KERN_ERR "endpoint[0] isn't interrupt\n");
+ dev_dbg(&umidi->dev->dev, "endpoint[0] isn't interrupt\n");
return -ENXIO;
}
epd = get_endpoint(hostif, 2);
if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) {
- snd_printdd(KERN_ERR "endpoint[2] isn't bulk output\n");
+ dev_dbg(&umidi->dev->dev, "endpoint[2] isn't bulk output\n");
return -ENXIO;
}
if (endpoint->out_cables > 0x0001) {
epd = get_endpoint(hostif, 4);
if (!usb_endpoint_dir_out(epd) ||
!usb_endpoint_xfer_bulk(epd)) {
- snd_printdd(KERN_ERR "endpoint[4] isn't bulk output\n");
+ dev_dbg(&umidi->dev->dev, "endpoint[4] isn't bulk output\n");
return -ENXIO;
}
}
@@ -2038,13 +2144,17 @@ void snd_usbmidi_input_stop(struct list_head* p)
unsigned int i, j;
umidi = list_entry(p, struct snd_usb_midi, list);
+ if (!umidi->input_running)
+ return;
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
if (ep->in)
for (j = 0; j < INPUT_URBS; ++j)
usb_kill_urb(ep->in->urbs[j]);
}
+ umidi->input_running = 0;
}
+EXPORT_SYMBOL(snd_usbmidi_input_stop);
static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint* ep)
{
@@ -2068,9 +2178,13 @@ void snd_usbmidi_input_start(struct list_head* p)
int i;
umidi = list_entry(p, struct snd_usb_midi, list);
+ if (umidi->input_running || !umidi->opened[1])
+ return;
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i)
snd_usbmidi_input_start_ep(umidi->endpoints[i].in);
+ umidi->input_running = 1;
}
+EXPORT_SYMBOL(snd_usbmidi_input_start);
/*
* Creates and registers everything needed for a MIDI streaming interface.
@@ -2095,6 +2209,7 @@ int snd_usbmidi_create(struct snd_card *card,
umidi->usb_protocol_ops = &snd_usbmidi_standard_ops;
init_timer(&umidi->error_timer);
spin_lock_init(&umidi->disc_lock);
+ init_rwsem(&umidi->disc_rwsem);
mutex_init(&umidi->mutex);
umidi->usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor),
le16_to_cpu(umidi->dev->descriptor.idProduct));
@@ -2121,6 +2236,9 @@ int snd_usbmidi_create(struct snd_card *card,
case QUIRK_MIDI_YAMAHA:
err = snd_usbmidi_detect_yamaha(umidi, &endpoints[0]);
break;
+ case QUIRK_MIDI_ROLAND:
+ err = snd_usbmidi_detect_roland(umidi, &endpoints[0]);
+ break;
case QUIRK_MIDI_MIDIMAN:
umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops;
memcpy(&endpoints[0], quirk->data,
@@ -2162,8 +2280,19 @@ int snd_usbmidi_create(struct snd_card *card,
/* endpoint 1 is input-only */
endpoints[1].out_cables = 0;
break;
+ case QUIRK_MIDI_FTDI:
+ umidi->usb_protocol_ops = &snd_usbmidi_ftdi_ops;
+
+ /* set baud rate to 31250 (48 MHz / 16 / 96) */
+ err = usb_control_msg(umidi->dev, usb_sndctrlpipe(umidi->dev, 0),
+ 3, 0x40, 0x60, 0, NULL, 0, 1000);
+ if (err < 0)
+ break;
+
+ err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
+ break;
default:
- snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
+ dev_err(&umidi->dev->dev, "invalid quirk type %d\n", quirk->type);
err = -ENXIO;
break;
}
@@ -2195,14 +2324,9 @@ int snd_usbmidi_create(struct snd_card *card,
return err;
}
- list_add_tail(&umidi->list, midi_list);
+ usb_autopm_get_interface_no_resume(umidi->iface);
- for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i)
- snd_usbmidi_input_start_ep(umidi->endpoints[i].in);
+ list_add_tail(&umidi->list, midi_list);
return 0;
}
-
EXPORT_SYMBOL(snd_usbmidi_create);
-EXPORT_SYMBOL(snd_usbmidi_input_stop);
-EXPORT_SYMBOL(snd_usbmidi_input_start);
-EXPORT_SYMBOL(snd_usbmidi_disconnect);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 16:29:27 +0000