leds: Add Dell Business Class Netbook LED driver

This patch adds an LED driver to support the Dell Activity LED on the
Dell Latitude 2100 netbook and future products to come. The Activity LED
is visible externally in the lid so classroom instructors can observe it
from a distance. The driver uses the sysfs led_class and provides a
standard LED interface.

Signed-off by: Bob Rodgers <Robert_Rodgers@dell.com>
Signed-off-by: Louis Davis <Louis_Davis@dell.com>
Signed-off-by: Jim Dailey <Jim_Dailey@dell.com>, Developers
Acked-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index d86e1a3ee0b7..505eb64c329c 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -278,6 +278,13 @@ config LEDS_ADP5520
           To compile this driver as a module, choose M here: the module will
           be called leds-adp5520.
 
+config LEDS_DELL_NETBOOKS
+        tristate "External LED on Dell Business Netbooks"
+        depends on X86 && ACPI_WMI
+        help
+          This adds support for the Latitude 2100 and similar
+          notebooks that have an external LED.
+
 config LEDS_TRIGGERS
         bool "LED Trigger support"
         help