Messages in this thread Patch in this message | | | Date | Fri, 20 Feb 2009 07:04:52 +0100 | From | Németh Márton <> | Subject | [PATCH] block: add documentation for register_blkdev() |
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From: Márton Németh <nm127@freemail.hu>
Add documentation for register_blkdev() function and for the parameters.
Signed-off-by: Márton Németh <nm127@freemail.hu> Cc: Greg Kroah-Hartman <gregkh@suse.de>
--- --- linux-2.6.29-rc5/block/genhd.c.orig 2009-02-14 18:36:39.000000000 +0100 +++ linux-2.6.29-rc5/block/genhd.c 2009-02-20 06:53:56.000000000 +0100 @@ -256,6 +256,22 @@ void blkdev_show(struct seq_file *seqf, } #endif /* CONFIG_PROC_FS */
+/** + * register_blkdev - register a new block device + * + * @major: the requested major device number [1..255]. If @major=0, try to + * allocate any unused major number. + * @name: the name of the new block device as a zero terminated string + * + * The @name must be unique within the system. + * + * The return value depends on the @major input parameter. + * - if a major device number was requested in range [1..255] then the + * function returns zero on success, or a negative error code + * - if any unused major number was requested with @major=0 parameter + * then the return value is the allocated major number in range + * [1..255] or a negative error code otherwise + */ int register_blkdev(unsigned int major, const char *name) { struct blk_major_name **n, *p; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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