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authorHelge Deller <deller@gmx.de>2008-07-14 10:28:32 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2008-07-19 00:50:30 -0400
commit305e342bba16730a0821131af6d7d0df43bfff4c (patch)
tree46417cba885d51088c1068caf4b0347ab8488a12 /drivers/input/serio/hp_sdc.c
parentf3d1eb19abdcb1e740d8ba0e06d606c1d4165438 (diff)
Input: add option to disable HP SDC driver
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>
Diffstat (limited to 'drivers/input/serio/hp_sdc.c')
-rw-r--r--drivers/input/serio/hp_sdc.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index edfedd9a166..7b233a492ad 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -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__)