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