HID: export hidinput_calc_abs_res

[~andy/linux] / drivers / hid / hid-input.c

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index d917c0d536856c80b7b898c7ad950b4728c16db6..d1ec571bdb3bf1724d447ceadd8a8b6e8d7fa668 100644 (file)
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -208,7 +208,7 @@ static int hidinput_setkeycode(struct input_dev *dev,
  * 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)
+__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
 {
        __s32 unit_exponent = field->unit_exponent;
        __s32 logical_extents = field->logical_maximum -
@@ -229,6 +229,12 @@ static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
        case ABS_X:
        case ABS_Y:
        case ABS_Z:
+       case ABS_MT_POSITION_X:
+       case ABS_MT_POSITION_Y:
+       case ABS_MT_TOOL_X:
+       case ABS_MT_TOOL_Y:
+       case ABS_MT_TOUCH_MAJOR:
+       case ABS_MT_TOUCH_MINOR:
                if (field->unit == 0x11) {              /* If centimeters */
                        /* Convert to millimeters */
                        unit_exponent += 1;
@@ -283,6 +289,7 @@ static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
        /* Calculate resolution */
        return logical_extents / physical_extents;
 }
+EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
 
 #ifdef CONFIG_HID_BATTERY_STRENGTH
 static enum power_supply_property hidinput_battery_props[] = {