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 /drivers/i2c/busses/i2c-isa.c |
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 'drivers/i2c/busses/i2c-isa.c')
-rw-r--r-- | drivers/i2c/busses/i2c-isa.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-isa.c b/drivers/i2c/busses/i2c-isa.c new file mode 100644 index 000000000000..0f54a2a0afa5 --- /dev/null +++ b/drivers/i2c/busses/i2c-isa.c | |||
@@ -0,0 +1,72 @@ | |||
1 | /* | ||
2 | i2c-isa.c - Part of lm_sensors, Linux kernel modules for hardware | ||
3 | monitoring | ||
4 | Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> | ||
5 | |||
6 | This program is free software; you can redistribute it and/or modify | ||
7 | it under the terms of the GNU General Public License as published by | ||
8 | the Free Software Foundation; either version 2 of the License, or | ||
9 | (at your option) any later version. | ||
10 | |||
11 | This program is distributed in the hope that it will be useful, | ||
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | GNU General Public License for more details. | ||
15 | |||
16 | You should have received a copy of the GNU General Public License | ||
17 | along with this program; if not, write to the Free Software | ||
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
19 | */ | ||
20 | |||
21 | /* This implements an i2c algorithm/adapter for ISA bus. Not that this is | ||
22 | on first sight very useful; almost no functionality is preserved. | ||
23 | Except that it makes writing drivers for chips which can be on both | ||
24 | the SMBus and the ISA bus very much easier. See lm78.c for an example | ||
25 | of this. */ | ||
26 | |||
27 | #include <linux/config.h> | ||
28 | #include <linux/init.h> | ||
29 | #include <linux/module.h> | ||
30 | #include <linux/kernel.h> | ||
31 | #include <linux/errno.h> | ||
32 | #include <linux/i2c.h> | ||
33 | |||
34 | static u32 isa_func(struct i2c_adapter *adapter); | ||
35 | |||
36 | /* This is the actual algorithm we define */ | ||
37 | static struct i2c_algorithm isa_algorithm = { | ||
38 | .name = "ISA bus algorithm", | ||
39 | .id = I2C_ALGO_ISA, | ||
40 | .functionality = isa_func, | ||
41 | }; | ||
42 | |||
43 | /* There can only be one... */ | ||
44 | static struct i2c_adapter isa_adapter = { | ||
45 | .owner = THIS_MODULE, | ||
46 | .class = I2C_CLASS_HWMON, | ||
47 | .algo = &isa_algorithm, | ||
48 | .name = "ISA main adapter", | ||
49 | }; | ||
50 | |||
51 | /* We can't do a thing... */ | ||
52 | static u32 isa_func(struct i2c_adapter *adapter) | ||
53 | { | ||
54 | return 0; | ||
55 | } | ||
56 | |||
57 | static int __init i2c_isa_init(void) | ||
58 | { | ||
59 | return i2c_add_adapter(&isa_adapter); | ||
60 | } | ||
61 | |||
62 | static void __exit i2c_isa_exit(void) | ||
63 | { | ||
64 | i2c_del_adapter(&isa_adapter); | ||
65 | } | ||
66 | |||
67 | MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>"); | ||
68 | MODULE_DESCRIPTION("ISA bus access through i2c"); | ||
69 | MODULE_LICENSE("GPL"); | ||
70 | |||
71 | module_init(i2c_isa_init); | ||
72 | module_exit(i2c_isa_exit); | ||