diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/nvram.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/nvram.h')
-rw-r--r-- | include/linux/nvram.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/nvram.h b/include/linux/nvram.h new file mode 100644 index 000000000000..b031e41b5e0d --- /dev/null +++ b/include/linux/nvram.h | |||
@@ -0,0 +1,27 @@ | |||
1 | #ifndef _LINUX_NVRAM_H | ||
2 | #define _LINUX_NVRAM_H | ||
3 | |||
4 | #include <linux/ioctl.h> | ||
5 | |||
6 | /* /dev/nvram ioctls */ | ||
7 | #define NVRAM_INIT _IO('p', 0x40) /* initialize NVRAM and set checksum */ | ||
8 | #define NVRAM_SETCKS _IO('p', 0x41) /* recalculate checksum */ | ||
9 | |||
10 | /* for all current systems, this is where NVRAM starts */ | ||
11 | #define NVRAM_FIRST_BYTE 14 | ||
12 | /* all these functions expect an NVRAM offset, not an absolute */ | ||
13 | #define NVRAM_OFFSET(x) ((x)-NVRAM_FIRST_BYTE) | ||
14 | |||
15 | #ifdef __KERNEL__ | ||
16 | /* __foo is foo without grabbing the rtc_lock - get it yourself */ | ||
17 | extern unsigned char __nvram_read_byte(int i); | ||
18 | extern unsigned char nvram_read_byte(int i); | ||
19 | extern void __nvram_write_byte(unsigned char c, int i); | ||
20 | extern void nvram_write_byte(unsigned char c, int i); | ||
21 | extern int __nvram_check_checksum(void); | ||
22 | extern int nvram_check_checksum(void); | ||
23 | extern void __nvram_set_checksum(void); | ||
24 | extern void nvram_set_checksum(void); | ||
25 | #endif | ||
26 | |||
27 | #endif /* _LINUX_NVRAM_H */ | ||