path: root/drivers/platform/x86/sony-laptop.c
diff options
authorAlan Jenkins <alan-jenkins@tuffmail.co.uk>2009-09-24 20:15:24 +0100
committerJohn W. Linville <linville@tuxdriver.com>2009-09-28 16:55:07 -0400
commit50fab0760a6c07cded229357a1351c325a575770 (patch)
tree93bb6f7cc4b02890ed3cbde92405646c1ed4983b /drivers/platform/x86/sony-laptop.c
parent8f1546cadf7ac5e9a40d54089a1c7302264ec49b (diff)
sony-laptop: check for rfkill hard block at load time
"I recently (on a flight) I found out that when I boot with the hard-switch activated, so turning off all wireless activity on my laptop, the state is not correctly announced in /dev/rfkill (reading it with rfkill command, or my own gnome applet)... After turning off and on again the hard-switch the events were right." We can fix this by querying the firmware at load time and calling rfkill_set_hw_state(). Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Tested-by: Norbert Preining <preining@logic.at> Acked-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Mattia Dongili <malattia@linux.it> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/platform/x86/sony-laptop.c')
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index f9f68e0e734..f3466a0fa25 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -1078,6 +1078,8 @@ static int sony_nc_setup_rfkill(struct acpi_device *device,
struct rfkill *rfk;
enum rfkill_type type;
const char *name;
+ int result;
+ bool hwblock;
switch (nc_type) {
@@ -1105,6 +1107,10 @@ static int sony_nc_setup_rfkill(struct acpi_device *device,
if (!rfk)
return -ENOMEM;
+ sony_call_snc_handle(0x124, 0x200, &result);
+ hwblock = !(result & 0x1);
+ rfkill_set_hw_state(rfk, hwblock);
err = rfkill_register(rfk);
if (err) {