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authorAnton Arapov <anton@redhat.com>2012-10-29 11:15:37 +0100
committerAnton Arapov <anton@redhat.com>2012-10-29 11:15:37 +0100
commit7d558cd9c7b18e4b16953265aa0da45e63f3b968 (patch)
tree7135d5a810768c9c619346282ee9cfdf1765e225 /Documentation/printk-formats.txt
parent985ef6b2108ed28ffd5f6630e1e0fce2e2a775f2 (diff)
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fedora kernel: cd394142aac30b5c751f25b517572e2448695641v3.6.3-2f17
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'Documentation/printk-formats.txt')
-rw-r--r--Documentation/printk-formats.txt15
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 5df176ed59b..7561d7ed8e1 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -53,9 +53,20 @@ Struct Resources:
For printing struct resources. The 'R' and 'r' specifiers result in a
printed resource with ('R') or without ('r') a decoded flags member.
+Raw buffer as a hex string:
+ %*ph 00 01 02 ... 3f
+ %*phC 00:01:02: ... :3f
+ %*phD 00-01-02- ... -3f
+ %*phN 000102 ... 3f
+
+ For printing a small buffers (up to 64 bytes long) as a hex string with
+ certain separator. For the larger buffers consider to use
+ print_hex_dump().
+
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 +78,10 @@ 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