On 24/01/17 19:47, Dmitry Torokhov wrote:
On Tue, Jan 24, 2017 at 01:09:55PM +0100, Juergen Gross wrote:
Instead of using the default resolution of 800*600 for the pointing
device of xen-kbdfront try to read the resolution of the (virtual)
framebuffer device. Use the default as fallback only.
Cc: stable@vger.kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
---
drivers/input/misc/xen-kbdfront.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
index 3900875..0032c81 100644
--- a/drivers/input/misc/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/module.h>
+#include <linux/fb.h>
#include <linux/input.h>
#include <linux/slab.h>
@@ -108,10 +109,11 @@ static irqreturn_t input_handler(int rq, void *dev_id) >> static int xenkbd_probe(struct xenbus_device *dev,
const struct xenbus_device_id *id)
{
- int ret, i;
+ int ret, i, width, height;
unsigned int abs;
struct xenkbd_info *info;
struct input_dev *kbd, *ptr;
+ struct fb_info *fb0;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info) {
@@ -173,9 +175,16 @@ static int xenkbd_probe(struct xenbus_device *dev,
ptr->id.product = 0xfffe;
if (abs) {
+ width = XENFB_WIDTH;
+ height = XENFB_HEIGHT;
+ fb0 = registered_fb[0];
This will break if !CONFIG_FBi I think. While i see that xen.config has
it on I wonder if it is still possible to turn it off (either randconfig
or intentionally).
kbuild robot says it is. :-(
Sending V2.
Thanks,
Juergen
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