Adding a powered USB Hub

[colliedog]

I've recently added a powered hub to my pi. When I plug in my keyboard and mouse to the hub the don't work. When they're connected directly they do! Do I have to download something to enable the hub

[kusti8]

What hub are you using? normally it should work out of the box. What does:

Code: Select all

lsusb

say when put into the terminal.

[colliedog]

It's a 7 port powered generic hub. It works on both my windows 7 pc's and my iMac. Like you I expected it to work out of the box as usb does.

many thanks for your reply

[rpdom]

Does it look something like this?


There are a lot of hubs that look like that which are very poor quality.

I bought one to check it out and some of the ports didn't work at all, most were unreliable and some only worked at USB1.1 speeds.

The power supply that came with it was labelled as 5V 1000mA, but couldn't handle more than 4.5V at 200mA or 3.2V at 500mA. I took that apart to check it and it was a very dangerous design with no proper regulation or mains isolation.

If not that one, could you link us to a picture/description of the one you have got?

[FTrevorGowen]

Does it look something like this?

There are a lot of hubs that look like that which are very poor quality.
...

+1
FWIW, some "internal" photo's (of my sample) here:
http://www.cpmspectrepi.webspace.virgin ... rtHub.html
and some "loading behaviour" and other measurements start here:
http://www.cpmspectrepi.webspace.virgin ... st_Results
Trev.