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13 changes: 9 additions & 4 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -40,17 +40,22 @@ I haven't tried cross-compiling this module, but it should work as well.

Module parameters:

* gpio_tx: int [default = 17]
* gpio_rx: int [default = 27]
* gpio_tx: int [default = 529]
* gpio_rx: int [default = 539]

Loading the module with default parameters:
```
sudo insmod soft_uart.ko
```

Loading module with custom parameters:
Look up GPIO number using the following command, for setting up pins other than the default.
```
sudo insmod soft_uart.ko gpio_tx=10 gpio_rx=11
cat /sys/kernel/debug/gpio
```

Loading module with custom parameters with (GPIO17:529) as TX and (GPIO27:539) as RX:
```
sudo insmod soft_uart.ko gpio_tx=529 gpio_rx=539
```


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