diff options
| author | Jean Delvare <khali@linux-fr.org> | 2005-01-05 21:55:55 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <greg@kroah.com> | 2005-01-05 21:55:55 -0800 |
| commit | 7413482ba0825a336600c55f476f633836c71619 (patch) | |
| tree | 7eeb40867e6864b2d29fcfc0c33206ddb688a235 /Documentation | |
| parent | 14f4eefa363d53fb23c762a664e84d0dae09740a (diff) | |
| download | history-7413482ba0825a336600c55f476f633836c71619.tar.gz | |
[PATCH] I2C: Add byte commands to i2c-stub
While working on EEPROMs, DDC/EDID and the like these last few days, I
wanted to use your i2c-stub driver to test my code. However, I noticed
that it wouldn't handle byte commands, while both i2cdetect and the
eeprom driver need it for proper operation. Thus I added this
functionality to the driver. What do you think about it?
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/i2c/i2c-stub | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/i2c/i2c-stub b/Documentation/i2c/i2c-stub index 2626ba926e4db8..d6dcb138abf510 100644 --- a/Documentation/i2c/i2c-stub +++ b/Documentation/i2c/i2c-stub @@ -2,14 +2,19 @@ MODULE: i2c-stub DESCRIPTION: -This module is a very simple fake I2C/SMBus driver. It implements three -types of SMBus commands: write quick, (r/w) byte data, and (r/w) word data. +This module is a very simple fake I2C/SMBus driver. It implements four +types of SMBus commands: write quick, (r/w) byte, (r/w) byte data, and +(r/w) word data. No hardware is needed nor associated with this module. It will accept write quick commands to all addresses; it will respond to the other commands (also to all addresses) by reading from or writing to an array in memory. It will also spam the kernel logs for every command it handles. +A pointer register with auto-increment is implemented for all byte +operations. This allows for continuous byte reads like those supported by +EEPROMs, among others. + The typical use-case is like this: 1. load this module 2. use i2cset (from lm_sensors project) to pre-load some data |