ideapad: add debugfs support

Add two nodes in debugfs which shows cfg value and its meaning,
and status info read from VPC2004.

Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/debugfs-ideapad b/Documentation/ABI/testing/debugfs-ideapad
new file mode 100644
index 000000000000..7079c0b21030
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-ideapad
@@ -0,0 +1,19 @@
+What:           /sys/kernel/debug/ideapad/cfg
+Date:           Sep 2011
+KernelVersion:  3.2
+Contact:        Ike Panhc <ike.pan@canonical.com>
+Description:
+
+cfg shows the return value of _CFG method in VPC2004 device. It tells machine
+capability and what graphic component within the machine.
+
+
+What:           /sys/kernel/debug/ideapad/status
+Date:           Sep 2011
+KernelVersion:  3.2
+Contact:        Ike Panhc <ike.pan@canonical.com>
+Description:
+
+status shows infos we can read and tells its meaning and value.
+
+