Re: [PATCH nxpwifi-next v3 1/3] wifi: nl80211: vendor-cmd: add NXP vendor command definitions

[Johannes Berg <johannes@sipsolutions.net>]

On Mon, 2026-10-05 at 13:44 +0800, jeff.chen_1@oss.nxp.com wrote:
> From: Jeff Chen <jeff.chen_1@nxp.com>
> 
> Add NXP vendor command and attribute definitions for use with
> NL80211_CMD_VENDOR.
> 
> The initial user of this interface is the Transmit Rate-based Power
> Control (TRPC) configuration command.
> 
> The TRPC table is a firmware-defined ABI that contains TX power limit
> data. Existing nl80211 TX power interfaces allow TX power levels to be
> configured, but do not provide an interface for exchanging TRPC table
> data between userspace and firmware.
> 
> Therefore, the TRPC configuration interface is exposed through a vendor
> command. The kernel does not interpret the TRPC table contents and only
> passes the table data between userspace and firmware.
> 
> Example use cases include:
> - Reading firmware TX power limit configuration for verification.
> - Updating platform-specific TX power limit tables.
> - Supporting manufacturing, validation, regulatory, and platform
>   bring-up workflows that require access to firmware-defined TX power
>   limit data.

But ... none of this really needs full support on every production
device, so it could just be debugfs?

johannes