diff options
Diffstat (limited to 'Documentation/ioctl/ioctl-decoding.txt')
-rw-r--r-- | Documentation/ioctl/ioctl-decoding.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/ioctl/ioctl-decoding.txt b/Documentation/ioctl/ioctl-decoding.txt index bfdf7f3ee4f0..e35efb0cec2e 100644 --- a/Documentation/ioctl/ioctl-decoding.txt +++ b/Documentation/ioctl/ioctl-decoding.txt | |||
@@ -1,6 +1,6 @@ | |||
1 | To decode a hex IOCTL code: | 1 | To decode a hex IOCTL code: |
2 | 2 | ||
3 | Most architecures use this generic format, but check | 3 | Most architectures use this generic format, but check |
4 | include/ARCH/ioctl.h for specifics, e.g. powerpc | 4 | include/ARCH/ioctl.h for specifics, e.g. powerpc |
5 | uses 3 bits to encode read/write and 13 bits for size. | 5 | uses 3 bits to encode read/write and 13 bits for size. |
6 | 6 | ||
@@ -18,7 +18,7 @@ uses 3 bits to encode read/write and 13 bits for size. | |||
18 | 7-0 function # | 18 | 7-0 function # |
19 | 19 | ||
20 | 20 | ||
21 | So for example 0x82187201 is a read with arg length of 0x218, | 21 | So for example 0x82187201 is a read with arg length of 0x218, |
22 | character 'r' function 1. Grepping the source reveals this is: | 22 | character 'r' function 1. Grepping the source reveals this is: |
23 | 23 | ||
24 | #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) | 24 | #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) |