diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-s390/tape390.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/asm-s390/tape390.h')
-rw-r--r-- | include/asm-s390/tape390.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/asm-s390/tape390.h b/include/asm-s390/tape390.h new file mode 100644 index 000000000000..f1d66ba0deef --- /dev/null +++ b/include/asm-s390/tape390.h | |||
@@ -0,0 +1,39 @@ | |||
1 | /************************************************************************* | ||
2 | * | ||
3 | * tape390.h | ||
4 | * enables user programs to display messages on the tape device | ||
5 | * | ||
6 | * S390 and zSeries version | ||
7 | * Copyright (C) 2001 IBM Corporation | ||
8 | * Author(s): Despina Papadopoulou <despina_p@de.ibm.com> | ||
9 | * | ||
10 | *************************************************************************/ | ||
11 | |||
12 | #ifndef _TAPE390_H | ||
13 | #define _TAPE390_H | ||
14 | |||
15 | #define TAPE390_DISPLAY _IOW('d', 1, struct display_struct) | ||
16 | |||
17 | /* | ||
18 | * The TAPE390_DISPLAY ioctl calls the Load Display command | ||
19 | * which transfers 17 bytes of data from the channel to the subsystem: | ||
20 | * - 1 format control byte, and | ||
21 | * - two 8-byte messages | ||
22 | * | ||
23 | * Format control byte: | ||
24 | * 0-2: New Message Overlay | ||
25 | * 3: Alternate Messages | ||
26 | * 4: Blink Message | ||
27 | * 5: Display Low/High Message | ||
28 | * 6: Reserved | ||
29 | * 7: Automatic Load Request | ||
30 | * | ||
31 | */ | ||
32 | |||
33 | typedef struct display_struct { | ||
34 | char cntrl; | ||
35 | char message1[8]; | ||
36 | char message2[8]; | ||
37 | } display_struct; | ||
38 | |||
39 | #endif | ||