On 01/22/2016 09:57 AM, Akinobu Mita wrote:
DS3231 has the temperature registers with a resolution of 0.25 degree celsius. This enables to get the value through hwmon. # cat /sys/class/i2c-adapter/i2c-2/2-0068/hwmon/hwmon0/temp1_input 21000 Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx> Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx> Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx> Cc: rtc-linux@xxxxxxxxxxxxxxxx Cc: Jean Delvare <jdelvare@xxxxxxxx> Cc: Guenter Roeck <linux@xxxxxxxxxxxx> Cc: lm-sensors@xxxxxxxxxxxxxx --- * v2 - convert to use hwmon framework, suggested by Alexandre Belloni drivers/rtc/rtc-ds1307.c | 122 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
Something else, on top of my previous comments.
+#if IS_ENABLED(CONFIG_HWMON)
I don't think this will work as intended. It will fail if the ds1307 driver is built into the kernel but hwmon is built as module. Check configurations such as BE2NET_HWMON or NET_DSA_HWMON for ideas on how to handle this problem. Thanks, Guenter _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
