summaryrefslogtreecommitdiff
path: root/chip
diff options
context:
space:
mode:
authorWei-Han Chen <stimim@google.com>2018-09-19 15:12:53 +0800
committerchrome-bot <chrome-bot@chromium.org>2018-09-26 10:32:06 -0700
commit63dd0de36d4ca7148a3c775ffb59c7eff610cf93 (patch)
tree051b712ff3331716f01bc37a47d97ff757263a9c /chip
parent8649d800a9dd9c23de199029b2db25827f687925 (diff)
downloadchrome-ec-63dd0de36d4ca7148a3c775ffb59c7eff610cf93.tar.gz
usb_hid_touchpad: fix logical max of width & height
Width and Height are 12 bits in USB HID descriptor. But the logical maximum was set to 255. Also scale up width and height reported by ST firmware. BRANCH=nocturne BUG=none TEST=manual on whiskers Signed-off-by: Wei-Han Chen <stimim@chromium.org> Change-Id: I899af2b18120d9e877d45e1dc2c14404a412797b Reviewed-on: https://chromium-review.googlesource.com/1232798 Reviewed-by: Tai-Hsu Lin <sheckylin@chromium.org> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Diffstat (limited to 'chip')
-rw-r--r--chip/stm32/usb_hid_touchpad.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/chip/stm32/usb_hid_touchpad.c b/chip/stm32/usb_hid_touchpad.c
index ca1cb85cb7..0ead660432 100644
--- a/chip/stm32/usb_hid_touchpad.c
+++ b/chip/stm32/usb_hid_touchpad.c
@@ -89,7 +89,7 @@ const struct usb_endpoint_descriptor USB_EP_DESC(USB_IFACE_HID_TOUCHPAD, 81) = {
0x75, 0x09, /* Report Size (9) */ \
0x09, 0x30, /* Usage (Tip pressure) */ \
0x81, 0x02, /* Input (Data,Var,Abs) */ \
- 0x26, 0xFF, 0x00, /* Logical Maximum (255) */ \
+ 0x26, 0xFF, 0x0F, /* Logical Maximum (4095) */ \
0x75, 0x0C, /* Report Size (12) */ \
0x09, 0x48, /* Usage (WIDTH) */ \
0x81, 0x02, /* Input (Data,Var,Abs) */ \