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| author | Andrei Emeltchenko <andrei.emeltchenko@intel.com> | 2012-07-30 14:40:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-30 17:25:14 -0700 |
| commit | 76597ff989a1fbaa9b9a1e54007cd759bf257ab7 (patch) | |
| tree | 51c5a7e99de7ff2ba88ba73b110a60c623c5d32c /Documentation/printk-formats.txt | |
| parent | 61e99ab8e35a88b8c4d0f80d3df9ee16df471be5 (diff) | |
| download | lwn-76597ff989a1fbaa9b9a1e54007cd759bf257ab7.tar.gz lwn-76597ff989a1fbaa9b9a1e54007cd759bf257ab7.zip | |
vsprintf: add %pMR for Bluetooth MAC address
Bluetooth uses mostly LE byte order which is reversed for visual
interpretation. Currently in Bluetooth in use unsafe batostr function.
This is a slightly modified version of Joe's patch (sent Sat, Dec 4,
2010).
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Cc: Joe Perches <joe@perches.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/printk-formats.txt')
| -rw-r--r-- | Documentation/printk-formats.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt index 5df176ed59b8..d8d168fa79d6 100644 --- 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 |