According to the USB protocol, the host should automatically adapt the remote wake-up function based on the configuration descriptor reported by the device, rather than only the default keyboard support. Therefore, it's necessary to support other hid devices, such as digital headsets,mice,etc. Signed-off-by: ryan <ryanzhou54@xxxxxxxxx> --- drivers/hid/usbhid/hid-core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index a90ed2ceae84..d2901ad9a871 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -1179,16 +1179,16 @@ static int usbhid_start(struct hid_device *hid) /* Some keyboards don't work until their LEDs have been set. * Since BIOSes do set the LEDs, it must be safe for any device * that supports the keyboard boot protocol. - * In addition, enable remote wakeup by default for all keyboard - * devices supporting the boot protocol. */ if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT && interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_KEYBOARD) { usbhid_set_leds(hid); - device_set_wakeup_enable(&dev->dev, 1); } + if (dev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP) + device_set_wakeup_enable(&dev->dev, 1); + mutex_unlock(&usbhid->mutex); return 0; -- 2.17.1