Messages in this thread Patch in this message | | | From | Yueyao Zhu <> | Subject | [PATCH 3/3] sound: usb: allow interfaces that the driver claims to autosuspend | Date | Thu, 8 Jun 2017 14:58:28 -0700 |
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From: Yueyao Zhu <yueyao@google.com>
Instead of calling usb_enable_autosuspend() to change the configuration of a USB device as an interface driver, enable autosuspend for every interfaces that the driver claims.
Signed-off-by: Yueyao Zhu <yueyao@google.com> --- sound/usb/card.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/sound/usb/card.c b/sound/usb/card.c index 6640277a725b..79bec2883740 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -184,6 +184,7 @@ static int snd_usb_create_stream(struct snd_usb_audio *chip, int ctrlif, int int return -EINVAL; } usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L); + usb_allow_interface_autosuspend(iface); return 0; } @@ -206,6 +207,7 @@ static int snd_usb_create_stream(struct snd_usb_audio *chip, int ctrlif, int int if (! snd_usb_parse_audio_interface(chip, interface)) { usb_set_interface(dev, interface, 0); /* reset the current interface */ usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L); + usb_allow_interface_autosuspend(iface); } return 0; @@ -618,6 +620,7 @@ static int usb_audio_probe(struct usb_interface *intf, usb_chip[chip->index] = chip; chip->num_interfaces++; usb_set_intfdata(intf, chip); + usb_allow_interface_autosuspend(intf); atomic_dec(&chip->active); mutex_unlock(®ister_mutex); return 0; -- 2.13.0.506.g27d5fe0cd-goog
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