libertas: Added support for host sleep feature

Existing "ethtool -s ethX wol X" command configures hostsleep
parameters, but those are activated only during suspend/resume,
there is no way to configure host sleep without actual suspend.

This patch adds debugfs command to enable/disable host sleep based on
already configured host sleep parameters using wol command.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/net/wireless/libertas/README b/drivers/net/wireless/libertas/README
index 2726c044430f..60fd1afe89ac 100644
--- a/drivers/net/wireless/libertas/README
+++ b/drivers/net/wireless/libertas/README
@@ -226,6 +226,18 @@ setuserscan
     All entries in the scan table (not just the new scan data when keep=1)
     will be displayed upon completion by use of the getscantable ioctl.
 
+hostsleep
+        This command is used to enable/disable host sleep.
+        Note: Host sleep parameters should be configured using
+        "ethtool -s ethX wol X" command before enabling host sleep.
+
+        Path: /sys/kernel/debug/libertas_wireless/ethX/
+
+        Usage:
+                cat hostsleep: reads the current hostsleep state
+                echo "1" > hostsleep : enable host sleep.
+                echo "0" > hostsleep : disable host sleep
+
 ========================
 IWCONFIG COMMANDS
 ========================