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hwmon: Documentation: Add usage example for HWMON_CHANNEL_INFO

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The new HWMON_CHANNEL_INFO macro simplifies the code, reduces the
likelihood of errors, and makes the code easier to read. Add a usage
example to help driver writers to actually use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2019-03-31 10:22:24 -07:00
parent 4ec1d234a9
commit 6bf2db4621
1 changed files with 13 additions and 0 deletions
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13
Documentation/hwmon/hwmon-kernel-api.txt
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@ -207,6 +207,19 @@ static const struct hwmon_channel_info *lm75_info[] = {
NULL NULL
}; };
The HWMON_CHANNEL_INFO() macro can and should be used when possible.
With this macro, the above example can be simplified to
static const struct hwmon_channel_info *lm75_info[] = {
HWMON_CHANNEL_INFO(chip,
HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL),
HWMON_CHANNEL_INFO(temp,
HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST),
NULL
};
The remaining declarations are as follows.
static const struct hwmon_ops lm75_hwmon_ops = { static const struct hwmon_ops lm75_hwmon_ops = {
.is_visible = lm75_is_visible, .is_visible = lm75_is_visible,
.read = lm75_read, .read = lm75_read,