Subject: [PATCH] [acpi ac] Add sysfs interface

- Create drivers/acpi/drivers/ac/sysfs.c and populate it
  with the 1 sysfs attribute to export
- Add Makefile entry

Signed-off-by: Patrick Mochel <mochel@linux.intel.com>

---

 drivers/acpi/drivers/ac/Makefile |    1 +
 drivers/acpi/drivers/ac/sysfs.c  |   23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+), 0 deletions(-)
 create mode 100644 drivers/acpi/drivers/ac/sysfs.c

applies-to: 0f66400f5ede2e43e24a014631a9d761c85ca30a
82a440acb923d47e43005268fdd508e1342b877f
diff --git a/drivers/acpi/drivers/ac/Makefile b/drivers/acpi/drivers/ac/Makefile
index 91f0082..5fbb8aa 100644
--- a/drivers/acpi/drivers/ac/Makefile
+++ b/drivers/acpi/drivers/ac/Makefile
@@ -3,4 +3,5 @@ obj-$(CONFIG_ACPI_AC)	+= ac.o
 ac-y			:= driver.o device.o event.o
 
 ac-$(CONFIG_ACPI_DM_PROC)	+= proc.o
+ac-$(CONFIG_ACPI_DM_SYSFS)	+= sysfs.o
 
diff --git a/drivers/acpi/drivers/ac/sysfs.c b/drivers/acpi/drivers/ac/sysfs.c
new file mode 100644
index 0000000..9cb8b6e
--- /dev/null
+++ b/drivers/acpi/drivers/ac/sysfs.c
@@ -0,0 +1,23 @@
+/**
+ * drivers/acpi/drivers/ac/sysfs.c - sysfs interface for ac driver.
+ *
+ * Copyright (C) 2005 Patrick Mochel
+ *
+ * This file is released under the GPLv2.
+ */
+
+#include <acpi/driver.h>
+#include "ac.h"
+
+
+static ssize_t state_show(struct acpi_dev * ad, char * buf)
+{
+	struct acpi_ac * ac = dev_get_drvdata(&ad->dev);
+	return sprintf(buf, "%02lx", ac->a_state);
+}
+
+static struct acpi_dev_attr ac_attrs[] = {
+	acpi_dev_attr_ro(state),
+};
+
+acpi_driver_sysfs(ac);
---
0.99.9.GIT