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Input: add option to disable HP SDC driver

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Add "no_hpsdc" kernel module option to the hp_sdc driver, so that
the driver can be instructed to not enable the HP SDC port.

This is useful on some older HPPA boxes with HIL keyboard
and HIL mouse where the new HP SDC HIL drivers don't work
yet. By disabling the new hp_sdc driver users are able to use
the older hilkbd driver instead.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Helge Deller 2008-07-14 10:28:32 -04:00 committed by Dmitry Torokhov
parent f3d1eb19ab
commit 305e342bba
1 changed files with 9 additions and 0 deletions
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9
drivers/input/serio/hp_sdc.c
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@ -105,6 +105,10 @@ EXPORT_SYMBOL(__hp_sdc_enqueue_transaction);
EXPORT_SYMBOL(hp_sdc_enqueue_transaction);
EXPORT_SYMBOL(hp_sdc_dequeue_transaction);
static unsigned int hp_sdc_disabled;
module_param_named(no_hpsdc, hp_sdc_disabled, bool, 0);
MODULE_PARM_DESC(no_hpsdc, "Do not enable HP SDC driver.");
static hp_i8042_sdc hp_sdc; /* All driver state is kept in here. */
/*************** primitives for use in any context *********************/
@ -980,6 +984,11 @@ static int __init hp_sdc_register(void)
unsigned char i;
#endif
if (hp_sdc_disabled) {
printk(KERN_WARNING PREFIX "HP SDC driver disabled by no_hpsdc=1.\n");
return -ENODEV;
}
hp_sdc.dev = NULL;
hp_sdc.dev_err = 0;
#if defined(__hppa__)