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fwupd/plugins/csr
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Richard Hughes bfd946e463 Use '#pragma once' to avoid a lot of boilerplate
2019-02-09 08:42:30 -06:00
..
data csr: Add a new plugin to add support for CSR "Driverless DFU" 2017-12-11 10:47:18 +00:00
csr-aiaiai.quirk Change the quirk file structure to be more efficient 2018-06-28 13:32:30 +01:00
fu-csr-device.c trivial: Add fu_common_dump_raw() 2018-12-05 15:09:56 +00:00
fu-csr-device.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-plugin-csr.c Show a console warning if loading an out-of-tree plugin 2019-01-19 07:26:20 +00:00
meson.build Show a console warning if loading an out-of-tree plugin 2019-01-19 07:26:20 +00:00
README.md trivial: Add the missing protocol IDs to the plugin READMEs 2019-01-29 22:28:09 +00:00

README.md

CSR Support

Introduction

CSR is often called “driverless DFU” and is used only by BlueCore chips from Cambridge Silicon Radio (now owned by Qualcomm). The driverless just means that it's DFU like, and is routed over HID.

CSR is a ODM that makes most of the Bluetooth audio chips in vendor hardware. The hardware vendor can enable or disable features on the CSR microcontroller depending on licensing options (for instance echo cancellation), and there’s even a little virtual machine to do simple vendor-specific things.

All the CSR chips are updatable in-field, and most vendors issue updates to fix sound quality issues or to add support for new protocols or devices.

Firmware Format

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

This plugin supports the following protocol ID:

  • com.qualcomm.dfu

GUID Generation

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

  • USB\VID_0A12&PID_1337&REV_2520
  • USB\VID_0A12&PID_1337
  • USB\VID_0A12