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Subject[PATCH 2/8] Fix multibutton handling in synaptics.c.
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You can pull this changeset from:
bk://kernel.bkbits.net/vojtech/input

===================================================================

ChangeSet@1.1342, 2003-09-25 18:18:59+02:00, dtor_core@ameritech.net
input: Fix multibutton handling in Synaptics.c (nExtBtn > 8 case)


synaptics.c | 21 +++++++++++++++++----
1 files changed, 17 insertions(+), 4 deletions(-)

===================================================================

diff -Nru a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
--- a/drivers/input/mouse/synaptics.c Thu Sep 25 18:37:42 2003
+++ b/drivers/input/mouse/synaptics.c Thu Sep 25 18:37:42 2003
@@ -164,7 +164,8 @@

if (SYN_CAP_EXTENDED(priv->capabilities)) {
printk(KERN_INFO " Touchpad has extended capability bits\n");
- if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
+ if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
+ SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) <= 8)
printk(KERN_INFO " -> %d multi-buttons, i.e. besides standard buttons\n",
(int)(SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap)));
else if (SYN_CAP_FOUR_BUTTON(priv->capabilities))
@@ -352,7 +353,11 @@
if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
default:
- printk(KERN_ERR "This touchpad reports more than 8 multi-buttons, don't know how to handle.\n");
+ /*
+ * if nExtBtn is greater than 8 it should be considered
+ * invalid and treated as 0
+ */
+ break;
case 8:
set_bit(BTN_7, psmouse->dev.keybit);
set_bit(BTN_6, psmouse->dev.keybit);
@@ -437,7 +442,11 @@
((buf[3] & 2) ? !hw->right : hw->right)) {
switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
default:
- ; /* we did comment while initialising... */
+ /*
+ * if nExtBtn is greater than 8 it should be
+ * considered invalid and treated as 0
+ */
+ break;
case 8:
hw->b7 = ((buf[5] & 0x08)) ? 1 : 0;
hw->b6 = ((buf[4] & 0x08)) ? 1 : 0;
@@ -516,7 +525,11 @@
if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
switch(SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
default:
- ; /* we did comment while initialising... */
+ /*
+ * if nExtBtn is greater than 8 it should be considered
+ * invalid and treated as 0
+ */
+ break;
case 8:
input_report_key(dev, BTN_7, hw.b7);
input_report_key(dev, BTN_6, hw.b6);
-
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