1*0f920277SSebastian ReichelWhat: /sys/bus/spi/<dev>/update_firmware 2*0f920277SSebastian ReichelDate: Jul 2021 3*0f920277SSebastian ReichelContact: sebastian.reichel@collabora.com 4*0f920277SSebastian ReichelDescription: Write 1 to this file to update the ACHC microcontroller 5*0f920277SSebastian Reichel firmware via the EzPort interface. For this the kernel 6*0f920277SSebastian Reichel will load "achc.bin" via the firmware API (so usually 7*0f920277SSebastian Reichel from /lib/firmware). The write will block until the FW 8*0f920277SSebastian Reichel has either been flashed successfully or an error occured. 9*0f920277SSebastian Reichel 10*0f920277SSebastian ReichelWhat: /sys/bus/spi/<dev>/reset 11*0f920277SSebastian ReichelDate: Jul 2021 12*0f920277SSebastian ReichelContact: sebastian.reichel@collabora.com 13*0f920277SSebastian ReichelDescription: This file represents the microcontroller's reset line. 14*0f920277SSebastian Reichel 1 means the reset line is asserted, 0 means it's not 15*0f920277SSebastian Reichel asserted. The file is read and writable. 16