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USB 2.0 hub controller (2109:2817), found in a KVM switch, fails to enumerate high-power devices during cold boot and system restart. Applying the kernel parameter usbcore.quirks=2109:2817:k resolves the issue. Enumeration failure log: usb 1-1.2.3: device descriptor read/64, error -32 usb 1-1.2.3: Device not responding to setup address. usb 1-1.2.3: device not accepting address 11, error -71 usb 1-1.2-port3: unable to enumerate USB device Add USB_QUIRK_NO_LPM for this device. Signed-off-by: Rodrigo Lugathe da Conceição Alves --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 87810eff974e..a72c8cdf9777 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -576,6 +576,9 @@ static const struct usb_device_id usb_quirk_list[] = { /* VLI disk */ { USB_DEVICE(0x2109, 0x0711), .driver_info = USB_QUIRK_NO_LPM }, + /* VIA Labs, Inc. USB2.0 Hub */ + { USB_DEVICE(0x2109, 0x2817), .driver_info = USB_QUIRK_NO_LPM }, + /* Raydium Touchscreen */ { USB_DEVICE(0x2386, 0x3114), .driver_info = USB_QUIRK_NO_LPM }, -- 2.54.0