On 05.09.2016 14:19, Oliver Neukum wrote:
You add the device to the kernel quirks list. But if you don't use autosuspend, the point is moot.
The device does get spinned down (after not using it for a while, I have to wait before it responds for the first time), but not sure which method is used.
Do you use LPM, as described in Documentation/usb/power-management.txt ?
Is this what you're looking for? $ cat /sys/bus/usb/devices/2-1/power/usb3_hardware_lpm_u1 enabled $ cat /sys/bus/usb/devices/2-1/power/usb3_hardware_lpm_u2 enabled -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
