diff options
| author | Alan Jenkins <alan-jenkins@tuffmail.co.uk> | 2009-09-24 20:15:24 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-09-28 16:55:07 -0400 |
| commit | 50fab0760a6c07cded229357a1351c325a575770 (patch) | |
| tree | 93bb6f7cc4b02890ed3cbde92405646c1ed4983b | |
| parent | 8f1546cadf7ac5e9a40d54089a1c7302264ec49b (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>
| -rw-r--r-- | drivers/platform/x86/sony-laptop.c | 6 |
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) { case SONY_WIFI: @@ -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) { rfkill_destroy(rfk); |