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| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-07 16:41:47 +0000 |
|---|---|---|
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-07 16:41:47 +0000 |
| commit | fa652221ddb9607fb9f3075fe8a8540cd224cbc7 (patch) | |
| tree | 4d5ca54e1d24fe1fb9beb522725dd6808d77f421 /hw | |
| parent | 9c20d7a36fa1a4874a88ffa6dc829955fd1e8679 (diff) | |
| download | qemu-fa652221ddb9607fb9f3075fe8a8540cd224cbc7.tar.gz qemu-fa652221ddb9607fb9f3075fe8a8540cd224cbc7.tar.bz2 qemu-fa652221ddb9607fb9f3075fe8a8540cd224cbc7.zip | |
fix usb-hid SET_IDLE behaviour (Stefano Stabellini)
the usb-hid spec states that the SET_IDLE request has a 16bit value,
where the upper byte specifies the idle rate (currently unimplemented,
we handle only the 0 case, meaning infinite duration) and the lower
byte specifies the report id (0 means all reports).
In our code we do idle = value, while it should be idle = "upper byte",
especially if the guest issues a GET_IDLE, we should return only the
idle rate while we are returning only the report id.
In practice it doesn't make much difference because I have only seen
SET_VALUE with both bytes set to 0 so far, but still it is wrong.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6211 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/usb-hid.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/usb-hid.c b/hw/usb-hid.c index 972543f282..76fdce6912 100644 --- a/hw/usb-hid.c +++ b/hw/usb-hid.c @@ -65,7 +65,7 @@ typedef struct USBHIDState { }; int kind; int protocol; - int idle; + uint8_t idle; int changed; void *datain_opaque; void (*datain)(void *); @@ -794,7 +794,7 @@ static int usb_hid_handle_control(USBDevice *dev, int request, int value, data[0] = s->idle; break; case SET_IDLE: - s->idle = value; + s->idle = (uint8_t) (value >> 8); ret = 0; break; default: |