From mboxrd@z Thu Jan 1 00:00:00 1970 From: Seth Forshee Subject: [PATCH 1/4] ACPI: EC: Add ec_get_handle() Date: Thu, 15 Dec 2011 12:06:08 -0600 Message-ID: <1323972371-13189-2-git-send-email-seth.forshee@canonical.com> References: <1323972371-13189-1-git-send-email-seth.forshee@canonical.com> Return-path: In-Reply-To: <1323972371-13189-1-git-send-email-seth.forshee@canonical.com> Sender: linux-kernel-owner@vger.kernel.org To: Matthew Garrett , Len Brown Cc: Azael Avalos , platform-driver-x86@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Seth Forshee List-Id: linux-acpi@vger.kernel.org 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 --- drivers/acpi/ec.c | 10 ++++++++++ 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 b19a18d..e37615f 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 6001b4da..ecccbb7 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) -- 1.7.5.4