| .. | ||
| data | ||
| fu-plugin-wacom-usb.c | ||
| fu-self-test.c | ||
| fu-wac-common.c | ||
| fu-wac-common.h | ||
| fu-wac-device.c | ||
| fu-wac-device.h | ||
| fu-wac-firmware.c | ||
| fu-wac-firmware.h | ||
| fu-wac-module-bluetooth.c | ||
| fu-wac-module-bluetooth.h | ||
| fu-wac-module-touch.c | ||
| fu-wac-module-touch.h | ||
| fu-wac-module.c | ||
| fu-wac-module.h | ||
| meson.build | ||
| README.md | ||
| wacom-usb.quirk | ||
Wacom USB Support
Introduction
Wacom provides interactive pen displays, pen tablets, and styluses to equip and inspire everyone make the world a more creative place.
From 2016 Wacom has been using a HID-based proprietary flashing algorithm which has been documented by support team at Wacom and provided under NDA under the understanding it would be used to build a plugin under a LGPLv2+ licence.
Wacom devices are actually composite devices, with the main ARM CPU being programmed using a more complicated erase, write, verify algorithm based on a historical update protocol. The "sub-module" devices use a newer protocol, again based on HID, but are handled differently depending on thier type.
Firmware Format
The daemon will decompress the cabinet archive and extract a firmware blob in SREC file format, with a custom vendor header.
GUID Generation
These devices use the standard USB DeviceInstanceId values, e.g.
USB\VID_056A&PID_0378&REV_0001USB\VID_056A&PID_0378USB\VID_056A