Change permissions and update README

1 files changed, 14 insertions, 3 deletions

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 # INA260-sysfs-driver
 
+Link to the [ina260 datasheet](https://www.ti.com/lit/gpn/INA260).
+
 ## Installation
     
     $ make
     $ sudo insmod ina260.ko
 
-## Usage
+## Managing INA260 devices
+- Add device: `echo ina260 [devaddr] > /sys/bus/i2c/devices/<bus>/new_device`
+- Delete device: `echo [devaddr] > /sys/bus/i2c/devices/<bus>/delete_device`
+
+## Sysfs structure
+- Overview: `tree /sys/kernel/ina260`
+- You can access to each device registers in `/sys/kernel/ina260/<device>/registers/`
+- You can access to each device register fields in `/sys/kernel/ina260/<device>/fields/`
+- You can access to the currently measured current, voltage and power via `/sys/kernel/ina260/<device>/<power|current|voltage>` (units are watts, amperes and volts respectively)
 
-- Add device: `echo ina260 <devaddr> > /sys/bus/i2c/devices/<busid>/new_device`
+For more informations on the registers/fields, please refer to the [ina260 datasheet](https://www.ti.com/lit/gpn/INA260).
 
-- Next, run: `tree /sys/kernel/ina260`
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+## Notes
+- Tested so far on a [Beaglebone Black](https://www.beagleboard.org/boards/beaglebone-black) with a [Mikrobus Cape](https://www.mikroe.com/beaglebone-mikrobus-cape) with up to four ina260 devices attached.
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