diff options
| -rw-r--r-- | sound/usb/usbmidi.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 911f448..99295f9 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -965,7 +965,11 @@ static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi, } /* we never use interrupt output pipes */ pipe = usb_sndbulkpipe(umidi->chip->dev, ep_info->out_ep); - ep->max_transfer = usb_maxpacket(umidi->chip->dev, pipe, 1); + if (umidi->chip->usb_id == USB_ID(0x0a92, 0x1020)) /* ESI M4U */ + /* FIXME: we need more URBs to get reasonable bandwidth here: */ + ep->max_transfer = 4; + else + ep->max_transfer = usb_maxpacket(umidi->chip->dev, pipe, 1); buffer = usb_buffer_alloc(umidi->chip->dev, ep->max_transfer, GFP_KERNEL, &ep->urb->transfer_dma); if (!buffer) { |