pio-device
List connected PlatformIO (serial) devices
TLDR
List all available serial ports
List all available logical devices
Start an interactive device monitor
Start an interactive device monitor and listen to a specific port
Start an interactive device monitor and set a specific baud rate (defaults to 9600)
Start an interactive device monitor and set a specific EOL character (defaults to CRLF)
Go to the menu of the interactive device monitor
SYNOPSIS
pio-device [options] device
PARAMETERS
-l, --list
Lists all detected PIO devices.
-i, --info device
Displays detailed information about the specified PIO device.
-e, --enable device
Enables the specified PIO device.
-d, --disable device
Disables the specified PIO device.
-r, --read device
Reads the current value of the PIO device.
-w, --write device value
Writes the specified value to the PIO device.
-m, --mode device mode
Sets the mode of the PIO device (e.g., input, output).
-h, --help
Displays help message.
DESCRIPTION
The `pio-device` command is a utility for managing parallel I/O (PIO) devices in a Linux system. It allows users to query the status of PIO devices, enable or disable them, and configure their parameters. This tool is crucial for systems utilizing parallel ports for various applications like controlling external hardware, legacy printer support, or custom data acquisition. Modern systems often rely on USB-based serial connections, but `pio-device` remains relevant where older hardware or specific embedded systems are employed. The command provides a low-level interface, giving precise control over individual PIO pins and their behavior. It may require root privileges for certain operations such as enabling or disabling devices or modifying their configurations. The `pio-device` command offers an alternative means for interacting with the PIO interface.
It can provide detailed information about the PIO device such as the port address and interrupt request line (IRQ).
CAVEATS
Requires root privileges to enable, disable, or configure devices. PIO devices are becoming less common in modern systems.
DEVICE NAMING
The device argument refers to the name or identifier of the PIO device. This name is usually assigned by the kernel during device initialization. Use the `-l` option to determine the available device names. For example, /dev/parport0.
EXAMPLE
To display information about a PIO device named 'parport0', the command would be:
`pio-device -i parport0`
