blkid: document --hint

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/misc-utils/blkid.8.adoc b/misc-utils/blkid.8.adoc
index 9fad82725119a0905a8560abcbdb4362a9060bc7..cea44c303979ec52af12a2d130597e7847925a25 100644 (file)
--- a/misc-utils/blkid.8.adoc
+++ b/misc-utils/blkid.8.adoc
@@ -58,6 +58,11 @@ Perform a garbage collection pass on the blkid cache to remove devices which no
 *-h*, *--help*::
 Display a usage message and exit.
 
+*-H*, *--hint* _setting_::
+Set probing hint. The hints are optional way how to force probing functions to
+check for example another location. The currently supported is
+"session_offset=_number_" to set session offset on multi-session UDF.
+
 *-i*, *--info*::
 Display information about I/O Limits (aka I/O topology). The 'export' output format is automatically enabled. This option can be used together with the *--probe* option.
 

diff --git a/misc-utils/blkid.c b/misc-utils/blkid.c
index 17706a930e4ed0c35e0ae3b6b0d726e00852dc3d..cccd8af87287fc22a7f9982b5a93758e826053f6 100644 (file)
--- a/misc-utils/blkid.c
+++ b/misc-utils/blkid.c
@@ -90,6 +90,7 @@ static void __attribute__((__noreturn__)) usage(void)
        fputs(_(        "Low-level probing options:\n"), out);
        fputs(_(        " -p, --probe                low-level superblocks probing (bypass cache)\n"), out);
        fputs(_(        " -i, --info                 gather information about I/O limits\n"), out);
+       fputs(_(        " -H, --hint <value>         set hint for probing function\n"), out);
        fputs(_(        " -S, --size <size>          overwrite device size\n"), out);
        fputs(_(        " -O, --offset <offset>      probe at the given offset\n"), out);
        fputs(_(        " -u, --usages <list>        filter by \"usage\" (e.g. -u filesystem,raid)\n"), out);