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fwupd/plugins/synaptics-cxaudio
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Richard Hughes bf72d393fd Split up FuUsbDevice into ->open() and ->setup() 
Before this change calling FuUsbDevice->open() opened the device, and
also unconditionally added various GUIDs and InstanceIDs which we
normally do in setup.
Then fu_device_setup() would call the FuSubclass->setup() vfunc which
would have no way of either opting out of the FuUsbDevice->setup()-like
behaviour, or controlling if the parent class ->setup is run before or
after the subclass setup.

Split up FuUsbDevice->open() into clear ->open() and ->setup() phases
and add the parent class calls where appropriate.

This means that ->setup() now behaves the same as all the other vfuncs.
2021-06-17 16:21:41 +01:00
..
fu-plugin-synaptics-cxaudio.c trivial: fixup includes for a variety of plugins 2021-06-14 10:12:45 +01:00
fu-synaptics-cxaudio-common.h trivial: fixup includes for a variety of plugins 2021-06-14 10:12:45 +01:00
fu-synaptics-cxaudio-device.c Split up FuUsbDevice into ->open() and ->setup() 2021-06-17 16:21:41 +01:00
fu-synaptics-cxaudio-device.h trivial: fixup includes for a variety of plugins 2021-06-14 10:12:45 +01:00
fu-synaptics-cxaudio-firmware.c trivial: fixup includes for a variety of plugins 2021-06-14 10:12:45 +01:00
fu-synaptics-cxaudio-firmware.h trivial: fixup includes for a variety of plugins 2021-06-14 10:12:45 +01:00
meson.build Move the plugin build logic to the plugins themselves 2021-02-18 14:46:20 +00:00
README.md synaptics-cxaudio: Use a plugin prefix for quirk keys 2021-03-03 08:30:34 +00:00
synaptics-cxaudio.quirk Simplify the quirk file format 2021-03-03 08:30:34 +00:00

README.md

Conexant Audio Support

Introduction

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

Firmware Format

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:

  • com.synaptics.synaptics-cxaudio

GUID Generation

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

  • USB\VID_17EF&PID_3083&REV_0001
  • USB\VID_17EF&PID_3083
  • USB\VID_17EF

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

  • SYNAPTICS_CXAUDIO\CX2198X
  • SYNAPTICS_CXAUDIO\CX21985

Update Behavior

The firmware is deployed when the device is in normal runtime mode, and the device will reset when the new firmware has been written.

Vendor ID Security

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

Quirk Use

This plugin uses the following plugin-specific quirks:

Quirk Description Minimum fwupd version
CxaudioChipIdBase Base integer for ChipID 1.3.2
CxaudioSoftwareReset If the chip supports self-reset 1.3.2
CxaudioPatch1ValidAddr Address of patch location #1 1.3.2
CxaudioPatch2ValidAddr Address of patch location #2 1.3.2

External interface access

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