[PATCH] w1_ds2433: Added crc16 protection and read caching.

The changes to ds2433 to add CRC16 protection and read caching.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/w1/Kconfig b/drivers/w1/Kconfig
index 1d5d0872eb4d..9a1e00dd3e02 100644
--- a/drivers/w1/Kconfig
+++ b/drivers/w1/Kconfig
@@ -61,4 +61,13 @@ config W1_DS2433
           Say Y here if you want to use a 1-wire
           4kb EEPROM family device (DS2433).
 
+config W1_DS2433_CRC
+        bool "Protect DS2433 data with a CRC16"
+        depends on W1_DS2433
+        select CRC16
+        help
+          Say Y here to protect DS2433 data with a CRC16.
+          Each block has 30 bytes of data and a two byte CRC16.
+          Full block writes are only allowed if the CRC is valid.
+
 endmenu