diff options
| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-04-17 06:46:29 -0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-17 10:37:23 -0700 |
| commit | 7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 (patch) | |
| tree | 9db30159bd32bec125c7d49e80a79bb7c4da0c8e /Documentation/hwmon/ltc4261 | |
| parent | b04f2f7d387b3160883c2a1f5e2285483a791e82 (diff) | |
docs: hwmon: Add an index file and rename docs to *.rst
Now that all files were converted to ReST format, rename them
and add an index.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon/ltc4261')
| -rw-r--r-- | Documentation/hwmon/ltc4261 | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/Documentation/hwmon/ltc4261 b/Documentation/hwmon/ltc4261 deleted file mode 100644 index c80233f8082e..000000000000 --- a/Documentation/hwmon/ltc4261 +++ /dev/null @@ -1,71 +0,0 @@ -Kernel driver ltc4261 -===================== - -Supported chips: - - * Linear Technology LTC4261 - - Prefix: 'ltc4261' - - Addresses scanned: - - - Datasheet: - - http://cds.linear.com/docs/Datasheet/42612fb.pdf - -Author: Guenter Roeck <linux@roeck-us.net> - - -Description ------------ - -The LTC4261/LTC4261-2 negative voltage Hot Swap controllers allow a board -to be safely inserted and removed from a live backplane. - - -Usage Notes ------------ - -This driver does not probe for LTC4261 devices, since there is no register -which can be safely used to identify the chip. You will have to instantiate -the devices explicitly. - -Example: the following will load the driver for an LTC4261 at address 0x10 -on I2C bus #1:: - - $ modprobe ltc4261 - $ echo ltc4261 0x10 > /sys/bus/i2c/devices/i2c-1/new_device - - -Sysfs entries -------------- - -Voltage readings provided by this driver are reported as obtained from the ADC -registers. If a set of voltage divider resistors is installed, calculate the -real voltage by multiplying the reported value with (R1+R2)/R2, where R1 is the -value of the divider resistor against the measured voltage and R2 is the value -of the divider resistor against Ground. - -Current reading provided by this driver is reported as obtained from the ADC -Current Sense register. The reported value assumes that a 1 mOhm sense resistor -is installed. If a different sense resistor is installed, calculate the real -current by dividing the reported value by the sense resistor value in mOhm. - -The chip has two voltage sensors, but only one set of voltage alarm status bits. -In many many designs, those alarms are associated with the ADIN2 sensor, due to -the proximity of the ADIN2 pin to the OV pin. ADIN2 is, however, not available -on all chip variants. To ensure that the alarm condition is reported to the user, -report it with both voltage sensors. - -======================= ============================= -in1_input ADIN2 voltage (mV) -in1_min_alarm ADIN/ADIN2 Undervoltage alarm -in1_max_alarm ADIN/ADIN2 Overvoltage alarm - -in2_input ADIN voltage (mV) -in2_min_alarm ADIN/ADIN2 Undervoltage alarm -in2_max_alarm ADIN/ADIN2 Overvoltage alarm - -curr1_input SENSE current (mA) -curr1_alarm SENSE overcurrent alarm -======================= ============================= |