diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/usb/midi2.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/sound/usb/midi2.c b/sound/usb/midi2.c index 7b4cfbaf2ec0..2ac3f96216bc 100644 --- a/sound/usb/midi2.c +++ b/sound/usb/midi2.c @@ -892,15 +892,39 @@ static int set_altset(struct snd_usb_midi2_interface *umidi) umidi->hostif->desc.bAlternateSetting); } +/* fill UMP Endpoint name string from USB descriptor */ +static void fill_ump_ep_name(struct snd_ump_endpoint *ump, + struct usb_device *dev, int id) +{ + usb_string(dev, id, ump->info.name, sizeof(ump->info.name)); +} + /* fill the fallback name string for each rawmidi instance */ static void set_fallback_rawmidi_names(struct snd_usb_midi2_interface *umidi) { + struct usb_device *dev = umidi->chip->dev; struct snd_usb_midi2_ump *rmidi; + struct snd_ump_endpoint *ump; list_for_each_entry(rmidi, &umidi->rawmidi_list, list) { - if (!*rmidi->ump->core.name) - sprintf(rmidi->ump->core.name, "USB MIDI %d", - rmidi->index); + ump = rmidi->ump; + /* fill UMP EP name from USB descriptors */ + if (!*ump->info.name && umidi->hostif->desc.iInterface) + fill_ump_ep_name(ump, dev, umidi->hostif->desc.iInterface); + else if (!*ump->info.name && dev->descriptor.iProduct) + fill_ump_ep_name(ump, dev, dev->descriptor.iProduct); + /* fill fallback name */ + if (!*ump->info.name) + sprintf(ump->info.name, "USB MIDI %d", rmidi->index); + /* copy as rawmidi name if not set */ + if (!*ump->core.name) + strscpy(ump->core.name, ump->info.name, + sizeof(ump->core.name)); + /* use serial number string as unique UMP product id */ + if (!*ump->info.product_id && dev->descriptor.iSerialNumber) + usb_string(dev, dev->descriptor.iSerialNumber, + ump->info.product_id, + sizeof(ump->info.product_id)); } } |