1 files changed, 27 insertions, 7 deletions

diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c
index 6e89b8368d9a..2c59afd99611 100644
--- a/sound/usb/usbmidi.c
+++ b/sound/usb/usbmidi.c
@@ -46,6 +46,8 @@
 #include <linux/timer.h>
 #include <linux/usb.h>
 #include <linux/wait.h>
+#include <linux/usb/audio.h>
+
 #include <sound/core.h>
 #include <sound/control.h>
 #include <sound/rawmidi.h>
@@ -1162,10 +1164,22 @@ static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi,
                 pipe = usb_sndintpipe(umidi->dev, ep_info->out_ep);
         else
                 pipe = usb_sndbulkpipe(umidi->dev, ep_info->out_ep);
-        if (umidi->usb_id == USB_ID(0x0a92, 0x1020)) /* ESI M4U */
-                ep->max_transfer = 4;
-        else
+        switch (umidi->usb_id) {
+        default:
                 ep->max_transfer = usb_maxpacket(umidi->dev, pipe, 1);
+                break;
+                /*
+                 * Various chips declare a packet size larger than 4 bytes, but
+                 * do not actually work with larger packets:
+                 */
+        case USB_ID(0x0a92, 0x1020): /* ESI M4U */
+        case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */
+        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" */
+                ep->max_transfer = 4;
+                break;
+        }
         for (i = 0; i < OUTPUT_URBS; ++i) {
                 buffer = usb_buffer_alloc(umidi->dev,
                                           ep->max_transfer, GFP_KERNEL,
@@ -1407,6 +1421,12 @@ static struct port_info {
         EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"),
         EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"),
         EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"),
+        /* Access Music Virus TI */
+        EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"),
+        PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0,
+                SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
+                SNDRV_SEQ_PORT_TYPE_HARDWARE |
+                SNDRV_SEQ_PORT_TYPE_SYNTHESIZER),
 };
 
 static struct port_info *find_port_info(struct snd_usb_midi* umidi, int number)
@@ -1522,7 +1542,7 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
         if (hostif->extralen >= 7 &&
             ms_header->bLength >= 7 &&
             ms_header->bDescriptorType == USB_DT_CS_INTERFACE &&
-            ms_header->bDescriptorSubtype == HEADER)
+            ms_header->bDescriptorSubtype == UAC_HEADER)
                 snd_printdd(KERN_INFO "MIDIStreaming version %02x.%02x\n",
                             ms_header->bcdMSC[1], ms_header->bcdMSC[0]);
         else
@@ -1538,7 +1558,7 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
                 if (hostep->extralen < 4 ||
                     ms_ep->bLength < 4 ||
                     ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT ||
-                    ms_ep->bDescriptorSubtype != MS_GENERAL)
+                    ms_ep->bDescriptorSubtype != UAC_MS_GENERAL)
                         continue;
                 if (usb_endpoint_dir_out(ep)) {
                         if (endpoints[epidx].out_ep) {
@@ -1750,9 +1770,9 @@ static int snd_usbmidi_detect_yamaha(struct snd_usb_midi* umidi,
              cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2;
              cs_desc += cs_desc[0]) {
                 if (cs_desc[1] == USB_DT_CS_INTERFACE) {
-                        if (cs_desc[2] == MIDI_IN_JACK)
+                        if (cs_desc[2] == UAC_MIDI_IN_JACK)
                                 endpoint->in_cables = (endpoint->in_cables << 1) | 1;
-                        else if (cs_desc[2] == MIDI_OUT_JACK)
+                        else if (cs_desc[2] == UAC_MIDI_OUT_JACK)
                                 endpoint->out_cables = (endpoint->out_cables << 1) | 1;
                 }
         }