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fwupd/plugins/csr
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Richard Hughes 56ac823af9 Set the protocol per-device not per-plugin 
Some plugins have devices with more than one protocol. Logically the protocol
belongs to the device, not the plugin, and in the future we could use this to
further check firmware that's about to be deployed.

This is also not exported into libfwupd (yet?) as it's remains a debug-feature
only -- protocols are not actually required for devices to be added.
2019-11-25 18:01:54 +00:00
..
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 Set the protocol per-device not per-plugin 2019-11-25 18:01:54 +00:00
fu-csr-device.h trivial: Remove G_BEGIN_DECLS from all private headers 2019-10-09 20:02:16 +01:00
fu-plugin-csr.c Set the protocol per-device not per-plugin 2019-11-25 18:01:54 +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