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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-01 10:09:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-01 10:09:14 -0700 |
| commit | 737f1cd8a8e80fe3243662f04d4d66829facc71a (patch) | |
| tree | 74eb9c4f1bce37b1b5315a7139f364854d467dfb /include/uapi | |
| parent | fcaec17b3657a4f8b0b131d5c1ab87e255c3dee6 (diff) | |
| parent | bbc3925cf696422492ebdaba386e61450fa2294c (diff) | |
| download | linux-737f1cd8a8e80fe3243662f04d4d66829facc71a.tar.bz2 | |
Merge tag 'for-5.16/cdrom-2021-10-29' of git://git.kernel.dk/linux-block
Pull CDROM updates from Jens Axboe:
"On behalf of Phillip, here are the CDROM updates for the 5.16-rc1
merge window:
- Add ioctl for improved media change detection (Lukas)
- Reformat some documentation (Phillip)
- Redundant variable removal (luo)"
* tag 'for-5.16/cdrom-2021-10-29' of git://git.kernel.dk/linux-block:
cdrom: Remove redundant variable and its assignment
cdrom: docs: reformat table in Documentation/userspace-api/ioctl/cdrom.rst
drivers/cdrom: improved ioctl for media change detection
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/cdrom.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/uapi/linux/cdrom.h b/include/uapi/linux/cdrom.h index 6c34f6e2f1f7..804ff8d98f71 100644 --- a/include/uapi/linux/cdrom.h +++ b/include/uapi/linux/cdrom.h @@ -147,6 +147,8 @@ #define CDROM_NEXT_WRITABLE 0x5394 /* get next writable block */ #define CDROM_LAST_WRITTEN 0x5395 /* get last block written on disc */ +#define CDROM_TIMED_MEDIA_CHANGE 0x5396 /* get the timestamp of the last media change */ + /******************************************************* * CDROM IOCTL structures *******************************************************/ @@ -295,6 +297,23 @@ struct cdrom_generic_command }; }; +/* This struct is used by CDROM_TIMED_MEDIA_CHANGE */ +struct cdrom_timed_media_change_info { + __s64 last_media_change; /* Timestamp of the last detected media + * change in ms. May be set by caller, + * updated upon successful return of + * ioctl. + */ + __u64 media_flags; /* Flags returned by ioctl to indicate + * media status. + */ +}; +#define MEDIA_CHANGED_FLAG 0x1 /* Last detected media change was more + * recent than last_media_change set by + * caller. + */ +/* other bits of media_flags available for future use */ + /* * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336, * 2340, or 2352 bytes long. |