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authorHenrik Rydberg <rydberg@euromail.se>2010-10-11 21:16:43 +0200
committerHenrik Rydberg <rydberg@euromail.se>2010-12-16 10:43:37 +0100
commit80a469e4f4d01ad96447f85cc71a379ec82ffe2d (patch)
tree9aeafae05421da0e8bd9b6553bad09b09ad5afff /drivers/hid
parentb88cbd3a007608a224fad5413de6170c75afd5a7 (diff)
downloadlinux-2.6.38-lt-ux500-80a469e4f4d01ad96447f85cc71a379ec82ffe2d.tar.gz
hid: egalax: Report zero as minimum pressure
The firmware reports a logical minimum of one, but in order for userspace applications to correctly map all reported values to non-zero pressure, the driver needs to report a logical minimum of zero. Fixed with this patch. Tested-by: Philipp Merkel <mail@philmerk.de> Cc: Stephane Chatty <chatty@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/hid-egalax.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hid/hid-egalax.c b/drivers/hid/hid-egalax.c
index 733bebc885d..aac8a6326bb 100644
--- a/drivers/hid/hid-egalax.c
+++ b/drivers/hid/hid-egalax.c
@@ -90,6 +90,7 @@ static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi,
set_abs(input, ABS_MT_TRACKING_ID, field, 0);
return 1;
case HID_DG_TIPPRESSURE:
+ field->logical_minimum = 0;
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_PRESSURE);
set_abs(input, ABS_MT_PRESSURE, field, 0);