[PATCH 24/44] Workaround i8042 chips with broken MUX mode

[Vojtech Pavlik]

You can pull this changeset from:
	bk://kernel.bkbits.net/vojtech/input

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

ChangeSet@xxxxxxxxxxx, 2004-03-03 11:49:20+01:00, vojtech@xxxxxxx
  input: Workaround i8042 chips with broken MUX mode.


 i8042.c |    5 +++++
 1 files changed, 5 insertions(+)

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

diff -Nru a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
--- a/drivers/input/serio/i8042.c	Tue Mar 16 13:18:37 2004
+++ b/drivers/input/serio/i8042.c	Tue Mar 16 13:18:37 2004
@@ -530,6 +530,11 @@
 
 	if (i8042_enable_mux_mode(values, &mux_version))
 		return -1;
+	
+	/* Workaround for broken chips which seem to support MUX, but in reality don't. */
+	/* They all report version 12.10 */
+	if (mux_version == 0xCA)
+		return -1;
 
 	printk(KERN_INFO "i8042.c: Detected active multiplexing controller, rev %d.%d.\n",
 		(mux_version >> 4) & 0xf, mux_version & 0xf);

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