On 2020/8/20 上午2:10, Kai-Heng Feng wrote:
On Aug 20, 2020, at 01:18, Takashi Iwai tiwai@suse.de wrote:
[ Adding a few more relevant people to Cc. ]
On Wed, 19 Aug 2020 13:57:57 +0200, penghao wrote:
TI024Gen3 USB-audio is controlled by TI024Gen3,when TI024Gens enter sleep mode, USB-audio will disconnect from USB bus port, wakup form s3 state
Signed-off-by: penghao penghao@uniontech.com
sound/usb/card.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/sound/usb/card.c b/sound/usb/card.c index 696e788c5d31..6bdbb34009b3 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -658,6 +658,12 @@ static int usb_audio_probe(struct usb_interface *intf, }
dev_set_drvdata(&dev->dev, chip);
- /*
*ALSA: usb-audio: Add prevent wakeup from s3 state trig by Lenovo*ThinkCentre TI024Gen3 usb-audio*/- if ((usb_id->idVendor == 0x17ef) && (usb_id->idProduct == 0xa012))
device_set_wakeup_enable(＆dev->dev, 0);Here it's no proper ASCII letter, and this must be broken. Please check the actual patch before submitting.
In anyway, before going further, I'd like to hear from other people whether this is really mandatory and appropriate. And whether it's specific to that device, too (not other Lenovo devices?)
If USB remote wakeup on this device is broken then we need to fix it in USB core instead of USB audio. We need USB and xHCI logs to understand the real problem here, the commit message doesn't contain enough information.
Kai-Heng
I checked with our QA, we didn't enable this machine before. And I tried 2 different usb audio cards, neither of them has wakeup capability. it is weird that your usb sound card (maybe a built-in usb sound card) has wakeup capability.
You could file a bug to https://bugs.launchpad.net/ubuntu/+source/linux/+filebug, then upload the needed logs, Kai-Heng and I will help investigate this issue.
Thanks,
Hui.
thanks,
Takashi