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