USB question

[xwiggen 0]

Armbianmonitor:

http://ix.io/2miY

I have this FriendlyArm ZeroPI with one micro-usb (power only) and one usb 2.0 A connection, yet dmesg yields 4x 2.0 root hubs  and 4x 1.0 root hubs.

Can anyone enlighten me?

 

odd. old version is uploaded. new version;

http://ix.io/2mj7

 

Edited May 17 by xwiggen

[Werner 100]

armbianmonitor -u

 

Either there are additional usb ports available via GPIO or some other components - whatever it may be - are connected internally via USB.

[Igor 1865]

7 hours ago, xwiggen said:

Can anyone enlighten me?

 

https://docs.armbian.com/Hardware_Allwinner-H3/

https://linux-sunxi.org/H3

 

Why all are enabled? Simply because there is nothing wrong if they are (on this particular board) and it would require either a test or seeing documentation to be able to know which to enable. Even this is almost nothing is one of those from the mountain of mini cosmetic tasks.

 

KISS and indolence prevails  https://github.com/armbian/build/blob/master/config/boards/zeropi.conf#L5 (you are welcome to check on hardware which is actually needed and send a MR)

 

[xwiggen Topic author 0]

19 hours ago, Igor said:

 

https://docs.armbian.com/Hardware_Allwinner-H3/

https://linux-sunxi.org/H3

 

Why all are enabled? Simply because there is nothing wrong if they are (on this particular board) and it would require either a test or seeing documentation to be able to know which to enable. Even this is almost nothing is one of those from the mountain of mini cosmetic tasks.

 

KISS and indolence prevails  https://github.com/armbian/build/blob/master/config/boards/zeropi.conf#L5 (you are welcome to check on hardware which is actually needed and send a MR)

 

Yeah I understand indolence, I did a check on http://wiki.friendlyarm.com/wiki/images/7/71/ZeroPi_20190731_Schematic.pdf yesterday to find how everything is connected.

It's just my lack of insight on hardware level (gpio, low level boot sequence, how components connect etc) appears, never had to go deeper than simple minicom.

What's an MR?

 

[martinayotte 618]

29 minutes ago, xwiggen said:

What's an MR?

"Merge Request", equivalent to PR which is "Pull Request" ...