ovos-PHAL

ovos-PHAL is the Plugin-based Hardware Abstraction Layer for OpenVoiceOS. It runs as a service that loads PHAL plugins based on the environment, either from known configuration or from device fingerprinting. Each plugin connects a specific piece of hardware or a specific system feature to the OVOS messagebus.

A PHAL plugin can provide a hardware integration, such as a respeaker, mk1, or mk2 device. It can also provide a system integration, such as a network manager or the OVOS shell.

Install

pip install ovos_PHAL

Extra plugin sets install with the package:

pip install ovos_PHAL[linux]   # alsa, system, network-manager, wallpaper-manager
pip install ovos_PHAL[mac]     # ovos-phal-plugin-mac
pip install ovos_PHAL[mk1]     # ovos-PHAL-plugin-mk1
pip install ovos_PHAL[mk2]     # ovos-PHAL-plugin-hotkeys
pip install ovos_PHAL[mk2dev]  # ovos-PHAL-plugin-mk2-fan-control
pip install ovos_PHAL[extras]  # ipgeo, connectivity-events, oauth

Usage

Start the PHAL service from the command line:

ovos_PHAL

This reads the PHAL section of mycroft.conf and starts the plugins listed there:

{
  "PHAL": {
    "ovos-PHAL-plugin-display-manager-ipc": {"enabled": true},
    "ovos-PHAL-plugin-mk1": {"enabled": true}
  }
}

To run PHAL from Python, use ovos_PHAL.service.PHAL:

from ovos_PHAL.service import PHAL
from ovos_utils import wait_for_exit_signal

phal = PHAL()
phal.start()
wait_for_exit_signal()
phal.shutdown()

An admin variant that loads root-only plugins runs with the ovos_PHAL_admin command.

Related projects

OpenVoiceOS/ovos-PHAL-plugin-alsa: ALSA audio control
OpenVoiceOS/ovos-PHAL-plugin-system: system-level actions (reboot, shutdown, factory reset)
OpenVoiceOS/ovos-PHAL-plugin-network-manager: NetworkManager integration
OpenVoiceOS/ovos-PHAL-plugin-wallpaper-manager: wallpaper management for homescreens
OpenVoiceOS/ovos-PHAL-plugin-oauth: OAuth handling over the messagebus
OpenVoiceOS/ovos-PHAL-plugin-connectivity-events: connectivity change events
OpenVoiceOS/ovos-PHAL-plugin-ipgeo: IP-based geolocation
OpenVoiceOS/ovos-PHAL-plugin-mk1: mk1 device support
OpenVoiceOS/ovos-PHAL-plugin-hotkeys: key press to bus event mapping

License

Apache-2.0

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