diff options
Diffstat (limited to 'Documentation/usb/authorization.txt')
| -rw-r--r-- | Documentation/usb/authorization.txt | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/usb/authorization.txt b/Documentation/usb/authorization.txt index c7e985f05d8f..9dd1dc7b1009 100644 --- a/Documentation/usb/authorization.txt +++ b/Documentation/usb/authorization.txt @@ -34,7 +34,9 @@ $ echo 1 > /sys/bus/usb/devices/usbX/authorized_default By default, Wired USB devices are authorized by default to connect. Wireless USB hosts deauthorize by default all new connected devices (this is so because we need to do an authentication phase -before authorizing). +before authorizing). Writing "2" to the authorized_default attribute +causes kernel to only authorize by default devices connected to internal +USB ports. Example system lockdown (lame) @@ -119,5 +121,5 @@ If a deauthorized interface will be authorized so the driver probing must be triggered manually by writing INTERFACE to /sys/bus/usb/drivers_probe For drivers that need multiple interfaces all needed interfaces should be -authroized first. After that the drivers should be probed. +authorized first. After that the drivers should be probed. This avoids side effects. |