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Altera_Forum's avatar
Altera_Forum
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20 years ago

isp1362-hcd.c USB driver help

Hi everyone... I am trying to get the isp1362-hcd.c driver to work on a 2.6.11 kernel. the board is a ppc homebrew board... I think I have the driver basically working but I am new to the USB stuff...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

That's OK.

You should check your hardware first before debug the software driver. You should write a simple program to do some registers access, and check the timing with a scope or LA. Hardware must be tested at much as possible.

Then trace thourgh the isp1362-hcd.c . Watch for the reset and initialization.

After that the usb will detect the root hub. You should read ch13 usb of the book Linux device driver 3rdEd. It will give you more insight.