In dragonboard410c pin11 pin13 and serial port operation can't open this node, and presented no permissions,

CodePudding user response:

Appeared always open/dev/tty96B1: Permission denied prompt words
The solution is as follows:

1. Because the tty belongs to "dialout" categories, such as user name is linaro,

Under the first command to view the user belong to the category of

Groups linaro

2. If there is no membership "dialout", then add the user to enter

Sudo gpasswd - add linarodialout

3. Logout and then login system activation function

CodePudding user response:

The chmod command you try, this is order to solve the problem of authority,