Author: wulf
Date: Thu Nov  2 21:13:24 2017
New Revision: 325343
URL: https://svnweb.freebsd.org/changeset/base/325343

Log:
  MFC: r324772
  ums(4): Unreverse evdev Tilt-axis reporting to match Linux.
  
  sysmouse tilt to button mapping remained unchanged.
  
  Reviewed by:          hselasky
  Approved by:          gonzo (mentor)
  Differential Revision:        https://reviews.freebsd.org/D12671

Modified:
  stable/11/sys/dev/usb/input/ums.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/dev/usb/input/ums.c
==============================================================================
--- stable/11/sys/dev/usb/input/ums.c   Thu Nov  2 20:45:04 2017        
(r325342)
+++ stable/11/sys/dev/usb/input/ums.c   Thu Nov  2 21:13:24 2017        
(r325343)
@@ -296,7 +296,7 @@ ums_intr_callback(struct usb_xfer *xfer, usb_error_t e
 
                if ((info->sc_flags & UMS_FLAG_T_AXIS) &&
                    (id == info->sc_iid_t)) {
-                       dt -= hid_get_data(buf, len, &info->sc_loc_t);
+                       dt += hid_get_data(buf, len, &info->sc_loc_t);
                        /* T-axis is translated into button presses */
                        buttons_found |= (1UL << 5) | (1UL << 6);
                }
@@ -332,10 +332,10 @@ ums_intr_callback(struct usb_xfer *xfer, usb_error_t e
                        /* translate T-axis into button presses until further */
                        if (dt > 0) {
                                ums_put_queue(sc, 0, 0, 0, 0, buttons);
-                               buttons |= 1UL << 5;
+                               buttons |= 1UL << 6;
                        } else if (dt < 0) {
                                ums_put_queue(sc, 0, 0, 0, 0, buttons);
-                               buttons |= 1UL << 6;
+                               buttons |= 1UL << 5;
                        }
 
                        sc->sc_status.button = buttons;
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