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| author | Seth Forshee <seth.forshee@canonical.com> | 2012-01-18 13:44:08 -0600 |
|---|---|---|
| committer | Matthew Garrett <mjg@redhat.com> | 2012-03-20 12:14:25 -0400 |
| commit | 3e2abc5a35d25442821e1733687b7abbc83b5072 (patch) | |
| tree | b20d167e7211e8ac75000b0fbe27cf16abe121cf | |
| parent | 7714567c87f43862d3d7049ed2907567be3e50c3 (diff) | |
| download | linux-3.10-3e2abc5a35d25442821e1733687b7abbc83b5072.tar.gz linux-3.10-3e2abc5a35d25442821e1733687b7abbc83b5072.tar.bz2 linux-3.10-3e2abc5a35d25442821e1733687b7abbc83b5072.zip | |
ACPI: EC: Add ec_get_handle()
toshiba_acpi needs to execute an AML method within the EC namespace
to make hotkeys work on some platforms. Provide an interface to
allow it to easily get a handle to the EC namespace for this purpose.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
| -rw-r--r-- | drivers/acpi/ec.c | 10 | ||||
| -rw-r--r-- | include/linux/acpi.h | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index b19a18dd994..e37615f310d 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -445,6 +445,16 @@ int ec_transaction(u8 command, EXPORT_SYMBOL(ec_transaction); +/* Get the handle to the EC device */ +acpi_handle ec_get_handle(void) +{ + if (!first_ec) + return NULL; + return first_ec->handle; +} + +EXPORT_SYMBOL(ec_get_handle); + void acpi_ec_block_transactions(void) { struct acpi_ec *ec = first_ec; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 3f968665899..f53fea61f40 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -151,6 +151,7 @@ extern int ec_write(u8 addr, u8 val); extern int ec_transaction(u8 command, const u8 *wdata, unsigned wdata_len, u8 *rdata, unsigned rdata_len); +extern acpi_handle ec_get_handle(void); #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) |