diff options
Diffstat (limited to 'Documentation/driver-api/usb/usb.rst')
| -rw-r--r-- | Documentation/driver-api/usb/usb.rst | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/driver-api/usb/usb.rst b/Documentation/driver-api/usb/usb.rst index 2c94ff2f4385..fb41768696ec 100644 --- a/Documentation/driver-api/usb/usb.rst +++ b/Documentation/driver-api/usb/usb.rst @@ -420,6 +420,12 @@ USBDEVFS_CONNECTINFO know the devnum value already, it's the DDD value of the device file name. +USBDEVFS_GET_SPEED + Returns the speed of the device. The speed is returned as a + nummerical value in accordance with enum usb_device_speed + + File modification time is not updated by this request. + USBDEVFS_GETDRIVER Returns the name of the kernel driver bound to a given interface (a string). Parameter is a pointer to this structure, which is @@ -771,8 +777,7 @@ Speed may be: ======= ====================================================== 1.5 Mbit/s for low speed USB 12 Mbit/s for full speed USB - 480 Mbit/s for high speed USB (added for USB 2.0); - also used for Wireless USB, which has no fixed speed + 480 Mbit/s for high speed USB (added for USB 2.0) 5000 Mbit/s for SuperSpeed USB (added for USB 3.0) ======= ====================================================== |