Resolution is added to input_absinfo in kernel 2.6.30. Let's
Retrieve it directly from there if available.
Signed-off-by: Ping Cheng <pingli...@gmail.com>
---
src/wcmUSB.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/src/wcmUSB.c b/src/wcmUSB.c
index d8e8312..c76e24d 100644
--- a/src/wcmUSB.c
+++ b/src/wcmUSB.c
@@ -27,6 +27,9 @@
#include <asm/types.h>
#include <linux/input.h>
#include <sys/utsname.h>
+# ifndef LINUX_VERSION_CODE
+# include <linux/version.h>
+# endif
#define MAX_USB_EVENTS 32
@@ -465,6 +468,11 @@ int usbWcmGetRanges(InputInfoPtr pInfo)
else
common->wcmMaxTouchX = absinfo.maximum;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,30)
+ if (is_touch && absinfo.resolution)
+ common->wcmTouchResolX = absinfo.resolution * 1000;
+#endif
+
/* max y */
if (ioctl(pInfo->fd, EVIOCGABS(ABS_Y), &absinfo) < 0)
{
@@ -482,6 +490,11 @@ int usbWcmGetRanges(InputInfoPtr pInfo)
else
common->wcmMaxTouchY = absinfo.maximum;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,30)
+ if (is_touch && absinfo.resolution)
+ common->wcmTouchResolY = absinfo.resolution * 1000;
+#endif
+
/* max finger strip X for tablets with Expresskeys
* or physical X for touch device in thousandth cm */
if (ioctl(pInfo->fd, EVIOCGABS(ABS_RX), &absinfo) == 0)
--
1.7.3.4
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