beaglebone black 接7寸lcd

本文仅作记录，如有问题留言

在BBB的/lib/firmware/目录下存放dts文件

/sys/devices/bone_capemgr.*/slots


echo BB-BONE-LCD7-01:00A2 > /sys/devices/bone_capemgr.*/slots




BB-BONE-LCD7-01-00A2.dtbo 




好使 
echo BB-BONE-LCD7-01:00A3 > /sys/devices/bone_capemgr.*/slots


测试
echo BB-BONE-LCD7-01:00A4 > /sys/devices/bone_capemgr.*/slots

login as: root
[email protected]'s password:
root@beaglebone:~# echo BB-BONE-LCD7-01:00A3 > /sys/devices/bone_capemgr.*/slots
root@beaglebone:~# root >tty1
-sh: root: command not found
root@beaglebone:~# echo root
root
root@beaglebone:~# echo root > tty1
root@beaglebone:~# echo root > /dev/tty0
root@beaglebone:~# echo root > /dev/tty1
root@beaglebone:~# echo  > /dev/tty1
root@beaglebone:~#
root@beaglebone:~# echo  $'\n' > /dev/tty0
root@beaglebone:~# echo  $'\n' > /dev/tty1
root@beaglebone:~#