The kernel-firmware-control interface permits the setting of a custom kernel firmware search path, and is typically used with the remoteproc interface to upload microcontroller firmware.
Interface documentation:
See Interface management and Supported interfaces for further details on how interfaces are used.
Developer details
Auto-connect: no
Super-privileged: yes
Requires snapd version 2.62+.
Code examples
The test code can be found in the snapd repository: http://github.com/snapcore/snapd/blob/master/interfaces/builtin/kernel_firmware_control_test.go
The source code for this interface is in the snapd repository: http://github.com/snapcore/snapd/blob/master/interfaces/builtin/kernel_firmware_control.go