Input: elantech - provide a sysfs knob for crc_enabled
The detection of crc_enabled is known to fail for Fujitsu H730. A DMI
blacklist is added for that, but it can be expected that other laptops will
pop up with this.
Here a sysfs knob is provided to alter the behaviour of crc_enabled.
Writing 0 or 1 to it sets the variable to 0 or 1. Reading it will show the
crc_enabled variable (0 or 1).
Reported-by: Stefan Valouch <stefan@valouch.com>
Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 6d628f1..3fcb6b3 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1330,6 +1330,7 @@
ELANTECH_INT_ATTR(reg_26, 0x26);
ELANTECH_INT_ATTR(debug, 0);
ELANTECH_INT_ATTR(paritycheck, 0);
+ELANTECH_INT_ATTR(crc_enabled, 0);
static struct attribute *elantech_attrs[] = {
&psmouse_attr_reg_07.dattr.attr,
@@ -1344,6 +1345,7 @@
&psmouse_attr_reg_26.dattr.attr,
&psmouse_attr_debug.dattr.attr,
&psmouse_attr_paritycheck.dattr.attr,
+ &psmouse_attr_crc_enabled.dattr.attr,
NULL
};