[PATCH v2 2/3] Input: elantech - provide a sysfs knob for crc_enabled
From: Ulrik De Bie <hidden>
Date: 2014-11-09 21:39:10
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
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 <redacted> Signed-off-by: Ulrik De Bie <redacted> --- drivers/input/mouse/elantech.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 8b04b71..3fcb6b3 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c@@ -1330,6 +1330,7 @@ ELANTECH_INT_ATTR(reg_25, 0x25); 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 @@ static struct attribute *elantech_attrs[] = { &psmouse_attr_reg_26.dattr.attr, &psmouse_attr_debug.dattr.attr, &psmouse_attr_paritycheck.dattr.attr, + &psmouse_attr_crc_enabled.dattr.attr, NULL };
@@ -1485,7 +1487,6 @@ static const struct dmi_system_id elantech_dmi_force_crc_enabled[] = { { } }; - /* * Some hw_version 3 models go into error state when we try to set * bit 3 and/or bit 1 of r10.
--
2.1.1