summaryrefslogtreecommitdiff
path: root/drivers/input/mouse/synaptics.c
diff options
context:
space:
mode:
authorDmitry Torokhov <dmitry.torokhov@gmail.com>2010-07-21 00:01:19 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-07-21 18:39:03 -0700
commit3619b8fead04ab9de643712e757ef6b5f79fd1ab (patch)
tree8706cddaa01085ea10645f905d1e874adc652cee /drivers/input/mouse/synaptics.c
parent3fea60261e73dbf4a51130d40cafcc8465b0f2c3 (diff)
Input: synaptics - relax capability ID checks on newer hardware
Older firmwares fixed the middle byte of the Synaptics capabilities query to 0x47, but starting with firmware 7.5 the middle byte represents submodel ID, sometimes also called "dash number". Reported-and-tested-by: Miroslav Ć ulc <fordfrog@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/mouse/synaptics.c')
-rw-r--r--drivers/input/mouse/synaptics.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 9ba9c4a17e15..705589dc9ac5 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -141,8 +141,13 @@ static int synaptics_capability(struct psmouse *psmouse)
priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
priv->ext_cap = priv->ext_cap_0c = 0;
- if (!SYN_CAP_VALID(priv->capabilities))
+ /*
+ * Older firmwares had submodel ID fixed to 0x47
+ */
+ if (SYN_ID_FULL(priv->identity) < 0x705 &&
+ SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) {
return -1;
+ }
/*
* Unless capExtended is set the rest of the flags should be ignored