summaryrefslogtreecommitdiff
path: root/drivers/hid/hid-input.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-12-03 04:40:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-12-03 04:40:04 +0300
commit59e57c622c3502346e8f930421ebc482d639520c (patch)
treeb3e8e450fdcc07dd1ed92fac9cc712870f2ca2dc /drivers/hid/hid-input.c
parent33dd94ae1ccbfb7bf0fb6c692bc3d1c4269e6177 (diff)
parent83ed79c561da20019cb24944f535530d73b2d615 (diff)
downloadlinux-59e57c622c3502346e8f930421ebc482d639520c.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: length resolution should be reported units/mm HID: add support for F430 Force Feedback Wheel HID: egalax: Use kzalloc HID: Remove KERN_DEBUG from dbg_hid use Manually fixed trivial conflict in drivers/hid/hid-input.c (due to removal of KERN_DEBUG from dbg_hid use clashing with new keycode interface switch)
Diffstat (limited to 'drivers/hid/hid-input.c')
-rw-r--r--drivers/hid/hid-input.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index bb0b3659437b..d8d372bae3cc 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -174,7 +174,7 @@ static int hidinput_setkeycode(struct input_dev *dev,
clear_bit(*old_keycode, dev->keybit);
set_bit(usage->code, dev->keybit);
- dbg_hid(KERN_DEBUG "Assigned keycode %d to HID usage code %x\n",
+ dbg_hid("Assigned keycode %d to HID usage code %x\n",
usage->code, usage->hid);
/*
@@ -203,8 +203,8 @@ static int hidinput_setkeycode(struct input_dev *dev,
*
* as seen in the HID specification v1.11 6.2.2.7 Global Items.
*
- * Only exponent 1 length units are processed. Centimeters are converted to
- * inches. Degrees are converted to radians.
+ * Only exponent 1 length units are processed. Centimeters and inches are
+ * converted to millimeters. Degrees are converted to radians.
*/
static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
{
@@ -225,13 +225,16 @@ static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
*/
if (code == ABS_X || code == ABS_Y || code == ABS_Z) {
if (field->unit == 0x11) { /* If centimeters */
- /* Convert to inches */
- prev = logical_extents;
- logical_extents *= 254;
- if (logical_extents < prev)
+ /* Convert to millimeters */
+ unit_exponent += 1;
+ } else if (field->unit == 0x13) { /* If inches */
+ /* Convert to millimeters */
+ prev = physical_extents;
+ physical_extents *= 254;
+ if (physical_extents < prev)
return 0;
- unit_exponent += 2;
- } else if (field->unit != 0x13) { /* If not inches */
+ unit_exponent -= 1;
+ } else {
return 0;
}
} else if (code == ABS_RX || code == ABS_RY || code == ABS_RZ) {