On Friday 09 May 2008, Zhao Yakui wrote:
> Subject:ACPI: Send the reserved AC notification event to user space
> >From : Zhao Yakui <yakui.zhao@xxxxxxxxx>
>
> On some laptops the bogus bios sends the reserved AC notification event(0x81)
> when the AC adapter is plugged/unplugged .It can't be sent to
> user space, which causes that user space application can't
> receive the AC adapter event.
> So the reserved AC adapter event(0x81) is still sent to the user space
> so that user space can receive the notification event.
>
> Signed-off-by: Zhao Yakui <yakui.zhao@xxxxxxxxx>
> ---
> drivers/acpi/ac.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> Index: linux-2.6/drivers/acpi/ac.c
> ===================================================================
> --- linux-2.6.orig/drivers/acpi/ac.c
> +++ linux-2.6/drivers/acpi/ac.c
> @@ -42,6 +42,7 @@
> #define ACPI_AC_DEVICE_NAME "AC Adapter"
> #define ACPI_AC_FILE_STATE "state"
> #define ACPI_AC_NOTIFY_STATUS 0x80
> +#define ACPI_AC_NOTIFY_RESERVED 0x81
> #define ACPI_AC_STATUS_OFFLINE 0x00
> #define ACPI_AC_STATUS_ONLINE 0x01
> #define ACPI_AC_STATUS_UNKNOWN 0xFF
> @@ -233,6 +234,9 @@ static void acpi_ac_notify(acpi_handle h
>
> device = ac->device;
> switch (event) {
> + case ACPI_AC_NOTIFY_RESERVED:
shouldn't this line above be "default:"
and the default: below this patch be removed?
-Len
> + ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> + "Unsupported event [0x%x]\n", event));
> case ACPI_AC_NOTIFY_STATUS:
> case ACPI_NOTIFY_BUS_CHECK:
> case ACPI_NOTIFY_DEVICE_CHECK:
>
>
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