10f920277SSebastian ReichelWhat: /sys/bus/spi/<dev>/update_firmware 20f920277SSebastian ReichelDate: Jul 2021 30f920277SSebastian ReichelContact: sebastian.reichel@collabora.com 40f920277SSebastian ReichelDescription: Write 1 to this file to update the ACHC microcontroller 50f920277SSebastian Reichel firmware via the EzPort interface. For this the kernel 60f920277SSebastian Reichel will load "achc.bin" via the firmware API (so usually 70f920277SSebastian Reichel from /lib/firmware). The write will block until the FW 8*ebab9426SBjorn Helgaas has either been flashed successfully or an error occurred. 90f920277SSebastian Reichel 100f920277SSebastian ReichelWhat: /sys/bus/spi/<dev>/reset 110f920277SSebastian ReichelDate: Jul 2021 120f920277SSebastian ReichelContact: sebastian.reichel@collabora.com 130f920277SSebastian ReichelDescription: This file represents the microcontroller's reset line. 140f920277SSebastian Reichel 1 means the reset line is asserted, 0 means it's not 150f920277SSebastian Reichel asserted. The file is read and writable. 16