how to change autosuspend?

[ksh 0]

when i open up terminal and command 

cat /sys/module/usbcore/parameters/autosuspend

it answer 

2

 

it means autosuspend is on working

 

i want to disable it,so i search for its method

 

almost says edit /etc/default/grub 

but tinkerboard debian don't exist that file

 

so, this is problem

 

how to i change autosuspend 2 to -1?

[tooz 47]

hello @ksh, 

you can modify the cmdline.txt in /boot/ to diasble autosuspend:

sudo vim /boot/cmdline.txt 

add the following line:

usbcore.autosuspend=-1 

just delete this line if you'd want to enable autosuspend again (which means set it back to default)