vsprintf: add %pMR for Bluetooth MAC address

[platform/adaptation/renesas_rcar/renesas_kernel.git] / Documentation / printk-formats.txt

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 5df176e..d8d168f 100644 (file)
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -56,6 +56,7 @@ Struct Resources:
 MAC/FDDI addresses:
 
        %pM     00:01:02:03:04:05
+       %pMR    05:04:03:02:01:00
        %pMF    00-01-02-03-04-05
        %pm     000102030405
 
@@ -67,6 +68,10 @@ MAC/FDDI addresses:
        the 'M' specifier to use dash ('-') separators instead of the default
        separator.
 
+       For Bluetooth addresses the 'R' specifier shall be used after the 'M'
+       specifier to use reversed byte order suitable for visual interpretation
+       of Bluetooth addresses which are in the little endian order.
+
 IPv4 addresses:
 
        %pI4    1.2.3.4