diff options
| author | Stefan Koch <stefan.koch10@gmail.com> | 2015-08-25 21:10:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-09-22 12:08:40 -0700 |
| commit | 6b2bd3c8c69c4817a9a2feb4597021d486c105f4 (patch) | |
| tree | 13f2c1a83691b45149aa52bc5363e789c501c635 /include | |
| parent | 4ad2ddce1a096dea71d42969515d3a64f0d9246f (diff) | |
usb: interface authorization: Introduces the default interface authorization
Interfaces are allowed per default.
This can disabled or enabled (again) by writing 0 or 1 to
/sys/bus/usb/devices/usbX/interface_authorized_default
Signed-off-by: Stefan Koch <stefan.koch10@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/hcd.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index d2784c10bfe2..36ce3d215cad 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -120,6 +120,7 @@ struct usb_hcd { #define HCD_FLAG_WAKEUP_PENDING 4 /* root hub is resuming? */ #define HCD_FLAG_RH_RUNNING 5 /* root hub is running? */ #define HCD_FLAG_DEAD 6 /* controller has died? */ +#define HCD_FLAG_INTF_AUTHORIZED 7 /* authorize interfaces? */ /* The flags can be tested using these macros; they are likely to * be slightly faster than test_bit(). @@ -131,6 +132,14 @@ struct usb_hcd { #define HCD_RH_RUNNING(hcd) ((hcd)->flags & (1U << HCD_FLAG_RH_RUNNING)) #define HCD_DEAD(hcd) ((hcd)->flags & (1U << HCD_FLAG_DEAD)) + /* + * Specifies if interfaces are authorized by default + * or they require explicit user space authorization; this bit is + * settable through /sys/class/usb_host/X/interface_authorized_default + */ +#define HCD_INTF_AUTHORIZED(hcd) \ + ((hcd)->flags & (1U << HCD_FLAG_INTF_AUTHORIZED)) + /* Flags that get set only during HCD registration or removal. */ unsigned rh_registered:1;/* is root hub registered? */ unsigned rh_pollable:1; /* may we poll the root hub? */ |