Re: [PATCH v3] HID: pulsar: add driver for Pulsar gaming mice

[Jiri Kosina]

On Sun, 12 Apr 2026, Nikolas Koesling wrote:

> Add a HID driver for Pulsar wireless gaming mice (X2 V2, X2H, X2A,
> Xlite V3). The driver exposes battery level, voltage, and charging
> status through the power supply framework. It supports wired, 1kHz,
> and 4kHz wireless dongle connections.
> 
> The driver also supports Kysona M600 ATK, VXE R1 SE+ and
> VXE Dragonfly R1 Pro, which use the same protocol for reading
> battery status and availability.
> 
> The protocol used by this driver is based on findings from
> python-pulsar-mouse-tool by Andrew Rabert (MIT License):
> https://github.com/andrewrabert/python-pulsar-mouse-tool
> 
> ATK vendor and device IDs were provided by Leo <leo@xxxxxxxxxxxx>.
> VXE and Kysona vendor and device IDS are from hid-kysona.c by
>         Lode Willems <me@xxxxxxxxxxxxxxx>
> 
> Tested-by: Leo <leo@xxxxxxxxxxxx>
> Signed-off-by: Nikolas Koesling <nikolas@xxxxxxxxxxxxx>
> ---
> Changes in v2:
> - Add support for Kysona M600, ATK VXE R1 SE+, and VXE Dragonfly R1 Pro
> - Add device type enum to distinguish vendors and generate proper
>   battery names per vendor/model
> - Add mutual exclusion with HID_KYSONA in Kconfig
> - Add ATK and VXE vendor/device IDs to hid-ids.h
> - Refactor model name generation: extract model_pulsar() and add
>   model_atk() for vendor-specific battery naming
> - Fall back to hdev->name for battery model when device info read
>   fails on non-Pulsar devices (downgrade error to debug log)
> - Remove POWER_SUPPLY_PROP_MANUFACTURER property
> - Pass device type via driver_data in hid_device_id table
> 
> Changes in v3:
> - Increase size of battery model name to hid device name size
> ---
>  MAINTAINERS              |   6 +
>  drivers/hid/Kconfig      |  15 +
>  drivers/hid/Makefile     |   1 +
>  drivers/hid/hid-ids.h    |  15 +
>  drivers/hid/hid-pulsar.c | 754 +++++++++++++++++++++++++++++++++++++++
>  5 files changed, 791 insertions(+)
>  create mode 100644 drivers/hid/hid-pulsar.c
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index c3fe46d7c4bc..207216632918 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -11352,6 +11352,12 @@ L:	linux-input@xxxxxxxxxxxxxxx
>  S:	Supported
>  F:	drivers/hid/hid-playstation.c
>  
> +HID PULSAR DRIVER
> +M:	Nikolas Koesling <nikolas@xxxxxxxxxxxxx>
> +L:	linux-input@xxxxxxxxxxxxxxx
> +S:	Maintained
> +F:	drivers/hid/hid-pulsar.c
> +
>  HID SENSOR HUB DRIVERS
>  M:	Jiri Kosina <jikos@xxxxxxxxxx>
>  M:	Jonathan Cameron <jic23@xxxxxxxxxx>
> diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
> index c1d9f7c6a5f2..333d165554ee 100644
> --- a/drivers/hid/Kconfig
> +++ b/drivers/hid/Kconfig
> @@ -511,12 +511,15 @@ config HID_KYE
>  config HID_KYSONA
>  	tristate "Kysona devices"
>  	depends on USB_HID
> +	depends on !HID_PULSAR
>  	help
>  	Support for Kysona mice.
>  
>  	Say Y here if you have a Kysona M600 mouse
>  	and want to be able to read its battery capacity.
>  
> +	Note: The Kysona M600 is also supported by HID_PULSAR.
> +

I guess that we want to just ditch that driver altogether then?

Thanks,

-- 
Jiri Kosina
SUSE Labs