Hi, Currently only very few usbnet devices support the traffic based runtime PM, eg. wake up devices if there are packets to be transmitted. For the below situation, it should make sense to runtime suspend usbnet device to save power: - after network link becomes down This patch implements the runtime PM triggered by network link change event, and it works basically on asix usbnet device after a simple runtime PM test. drivers/net/usb/asix_devices.c | 6 +- drivers/net/usb/cdc_ether.c | 5 +- drivers/net/usb/cdc_ncm.c | 9 +- drivers/net/usb/dm9601.c | 7 +- drivers/net/usb/mcs7830.c | 6 +- drivers/net/usb/sierra_net.c | 6 +- drivers/net/usb/usbnet.c | 224 +++++++++++++++++++++++++++++++++++++++- include/linux/usb/usbnet.h | 21 +++- 8 files changed, 250 insertions(+), 34 deletions(-) Thanks -- Ming Lei -- 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
