This driver is for the DRC (wireless gamepad) when plugged to the DRH of the Wii U, a chip exposing it as a USB device. I tried to use this driver on master over usbip on my laptop, but usbip disconnects the device right after the driver created the /dev/input/event* files, so instead I have only tested this driver on the 4.19 branch of the linux-wiiu[1] downstream. Other than that, pretty much all of the HID parts of the gamepad work, it’s only missing microphone, camera and NFC input now but those are mostly standard (read require quirks) and pertain to other subsystems, so I felt like this can be upstreamed already. I’ve still put the RFC tag on this pull request because of two known problems in these patches (annotated with TODOs in the code): - The magnetometer is exposed using non-sensical ABS_* values, it seems most (all?) magnetometers are exposed in the iio subsystem instead, should I go the same way despite it clearly being part of the same HID device? - The battery number is currently based on a static int being incremented every time a new gamepad is “plugged in”, while I’d prefer to reuse the interface number for that. Thanks for your guidance. :) [1] https://gitlab.com/linux-wiiu/linux-wiiu Ash Logan (1): HID: wiiu-drc: Add a driver for this gamepad Emmanuel Gil Peyrot (3): HID: wiiu-drc: Implement touch reports HID: wiiu-drc: Add accelerometer, gyroscope and magnetometer readings HID: wiiu-drc: Add battery reporting drivers/hid/Kconfig | 7 + drivers/hid/Makefile | 1 + drivers/hid/hid-ids.h | 1 + drivers/hid/hid-quirks.c | 3 + drivers/hid/hid-wiiu-drc.c | 522 +++++++++++++++++++++++++++++++++++++ 5 files changed, 534 insertions(+) create mode 100644 drivers/hid/hid-wiiu-drc.c -- 2.31.1
