linux-kernel - [PATCH] staging: android: Add more help description on Kconfig

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Date:	Mon, 18 May 2015 19:50:17 +0530
From:	Jagan Teki <jteki@...nedev.com>
To:	linux-kernel@...r.kernel.org
Cc:	devel@...verdev.osuosl.org, Jagan Teki <jteki@...nedev.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Brian Swetland <swetland@...gle.com>
Subject: [PATCH] staging: android: Add more help description on Kconfig

This patch adds more help description on android Kconfig for
- lowmemory killer
- Timed gpio (same for timed output)

Signed-off-by: Jagan Teki <jteki@...nedev.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Brian Swetland <swetland@...gle.com>
---
 drivers/staging/android/Kconfig | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
index 8feb904..24d657b 100644
--- a/drivers/staging/android/Kconfig
+++ b/drivers/staging/android/Kconfig
@@ -22,11 +22,20 @@ config ANDROID_TIMED_GPIO
 	tristate "Android timed gpio driver"
 	depends on GPIOLIB && ANDROID_TIMED_OUTPUT
 	default n
+        ---help---
+	  Unlike generic gpio is to allow programs to access and manipulate gpio
+	  registers from user space, timed output/gpio is a system to allow changing
+	  a gpio pin and restore it automatically after a specified timeout.
 
 config ANDROID_LOW_MEMORY_KILLER
 	bool "Android Low Memory Killer"
 	---help---
-	  Registers processes to be killed when memory is low
+	  Registers processes to be killed when low memory conditions, this is useful
+	  as there is no particular swap space on android.
+
+	  The registered process will kills according to the priorities in android init
+	  scripts (/init.rc), and it defines priority values with minimum free memory size
+	  for each priority.
 
 config SYNC
 	bool "Synchronization framework"
-- 
1.9.1

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