Lets "usb auto suspend" work for devices that set their usb_driver::supports_autosuspend to 1. Has no effect for other devices.

Signed-off-by: Karsten Wiese fzu@wemgehoertderstaat.de --- sound/usb/usbmidi.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 6c616c7..842486f 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -860,11 +860,14 @@ static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) } substream->runtime->private_data = port; port->state = STATE_UNKNOWN; + usb_autopm_get_interface(umidi->iface); return 0; }

static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream) { + struct snd_usb_midi* umidi = substream->rmidi->private_data; + usb_autopm_put_interface(umidi->iface); return 0; }