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virtio-input: fix emulated tablet axis ranges 

The reported maximum was wrong. The X and Y coordinates are 0-based
so if size is 8000 maximum must be 7FFF.

Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Message-id: 1460128893-10244-1-git-send-email-lprosek@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Ladi Prosek 2016-04-08 17:21:33 +02:00 committed by Gerd Hoffmann
parent 2d73837466
commit 0263b3a72f
1 changed files with 2 additions and 2 deletions
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4
hw/input/virtio-input-hid.c
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@ -484,12 +484,12 @@ static struct virtio_input_config virtio_tablet_config[] = {
.select = VIRTIO_INPUT_CFG_ABS_INFO, .select = VIRTIO_INPUT_CFG_ABS_INFO,
.subsel = ABS_X, .subsel = ABS_X,
.size = sizeof(virtio_input_absinfo), .size = sizeof(virtio_input_absinfo),
.u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE), .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE - 1),
},{ },{
.select = VIRTIO_INPUT_CFG_ABS_INFO, .select = VIRTIO_INPUT_CFG_ABS_INFO,
.subsel = ABS_Y, .subsel = ABS_Y,
.size = sizeof(virtio_input_absinfo), .size = sizeof(virtio_input_absinfo),
.u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE), .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE - 1),
}, },
{ /* end of list */ }, { /* end of list */ },
}; };