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