Conexant Audio Support

Introduction

This plugin is used to update a small subset of Conexant (now owned by Synaptics) audio devices.

The daemon will decompress the cabinet archive and extract a firmware blob in a modified SREC file format.

This plugin supports the following protocol ID:

These devices use the standard USB DeviceInstanceId values, e.g.

These devices also use custom GUID values, e.g.

The vendor ID is set from the USB vendor, in this instance set to USB:0x17EF

This plugin uses the following plugin-specific quirks:

Quirk	Description	Minimum fwupd version
`ChipIdBase`	Base integer for ChipID	1.3.2
`IsSoftwareResetSupported`	If the chip supports self-reset	1.3.2
`EepromPatchValidAddr`	Address of patch location #1	1.3.2
`EepromPatch2ValidAddr`	Address of patch location #2	1.3.2

This plugin requires read/write access to /dev/bus/usb.