Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 1e4865f8 authored by Dmitry Torokhov's avatar Dmitry Torokhov
Browse files

Input: i8042 - fix AUX IRQ delivery check 



On boxes that do not implement AUX LOOP command we can not
verify AUX IRQ delivery and must assume that it is wired
properly.

Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 5809d537

drivers/input/serio/i8042.c

+4 −1
Original line number Diff line number Diff line
@@ -543,6 +543,7 @@ static int __devinit i8042_check_aux(void) 
{

	int retval = -1;

	int irq_registered = 0;

	int aux_loop_broken = 0;

	unsigned long flags;

	unsigned char param;
@@ -572,6 +573,8 @@ static int __devinit i8042_check_aux(void) 
		if (i8042_command(&param, I8042_CMD_AUX_TEST) ||

		    (param && param != 0xfa && param != 0xff))

			return -1;



		aux_loop_broken = 1;

	}



/*
@@ -595,7 +598,7 @@ static int __devinit i8042_check_aux(void) 
 * used it for a PCI card or somethig else.

 */



	if (i8042_noloop) {

	if (i8042_noloop || aux_loop_broken) {

/*

 * Without LOOP command we can't test AUX IRQ delivery. Assume the port

 * is working and hope we are right.