Input: alps - do not reduce trackpoint speed by half

On some v7 devices (e.g. Lenovo-E550) the deltas reported are typically only in the 0-1 range dividing this by 2 results in a range of 0-0. And even for v7 devices where this does not lead to making the trackstick entirely unusable, it makes it twice as slow as before we added v7 support and were using the ps/2 mouse emulation of the dual point setup. If some kind of generic slowdown is actually necessary for some devices, then that belongs in userspace, not in the kernel.

Hans de Goede committed 11 years ago

Commit 088df2c1 parent 692dd191 file · +2 −3Browse files

Unified · Split

drivers/input/mouse/alps.c+2−3

@@ -1063,9 +1063,8 @@ static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) · 1062 unmodified lines
1063	1063	right = (packet[1] & 0x02) >> 1;
1064	1064	middle = (packet[1] & 0x04) >> 2;
1065	1065
1066		− /* Divide 2 since trackpoint's speed is too fast */
1067		− input_report_rel(dev2, REL_X, (char)x / 2);
1068		− input_report_rel(dev2, REL_Y, -((char)y / 2));
	1066	+ input_report_rel(dev2, REL_X, (char)x);
	1067	+ input_report_rel(dev2, REL_Y, -((char)y));
1069	1068
1070	1069	input_report_key(dev2, BTN_LEFT, left);
1071	1070	input_report_key(dev2, BTN_RIGHT, right);