[开发杂项][USB]dfu firmware update over usb

Posted 2021-09-10 xcy6666

http://dfu-util.sourceforge.net/

device node in sysfs

• update fw

su root # strictly follow
apt install dfu-util
echo dfu > /sys/bus/usb/drivers/xxx/cmd
dfu-util -v -R -D xxx_fw.dfu