path: root/Documentation/hwmon/ltc4245
AgeCommit message (Collapse)Author
2010-08-14hwmon: (ltc4245) Expose all GPIO pins as analog voltagesIra W. Snyder
Add support for exposing all GPIO pins as analog voltages. Though this is not an ideal use of the chip, some hardware engineers may decide that the LTC4245 meets their design requirements when studying the datasheet. The GPIO pins are sampled in round-robin fashion, meaning that a slow reader will see stale data. A userspace application can detect this, because it will get -EAGAIN when reading from a sysfs file which contains stale data. Users can choose to use this feature on a per-chip basis by using either platform data or the OF device tree (where applicable). Signed-off-by: Ira W. Snyder <> Signed-off-by: Jean Delvare <>
2010-05-27hwmon: (ltc4245) Read only one GPIO pinIra W. Snyder
Read only one of the GPIO pins as an analog voltage. The ADC can be switched to a different GPIO pin at runtime, but this is not supported. Previously, this driver would report the analog voltage of the currently selected GPIO pin as all three GPIO voltages: in9_input, in10_input and in11_input. Signed-off-by: Ira W. Snyder <> Signed-off-by: Jean Delvare <> Cc:
2009-10-04ltc4215/ltc4245: Discard obsolete detect methodsJean Delvare
There is no point in implementing a detect callback for the LTC4215 and LTC4245, as these devices can't be detected. It was there solely to handle "force" module parameters to instantiate devices, but now we have a better sysfs interface that can do the same. So we can get rid of the ugly module parameters and the detect callbacks. This shrinks the binary module sizes by 36% and 46%, respectively. Signed-off-by: Jean Delvare <> Cc: Ira W. Snyder <>
2009-01-07hwmon: Add LTC4245 driverIra Snyder
Add Linux support for the Linear Technology LTC4245 Multiple Supply Hot Swap controller I2C monitoring interface. Signed-off-by: Ira W. Snyder <> Acked-by: Hans de Goede <> Signed-off-by: Jean Delvare <>