On Friday 09 January 2009 03:41:21 Thomas Dahlmann wrote:Right, g_zero should enumerate. It also provides data sink/source and loopback functionality.
Vadim Lobanov schrieb:
Alas, the hardware doesn't work. When I try plugging in the other end of
the USB cable, absolutely nothing happens. Not even an interrupt:
/proc/interrupts for the amd5536udc line stays at zero. Any thoughts on
possible ways to tackle this / what could be going wrong / etc?
Just realized that I forgot to mention that I do also have g_zero sitting on top of amd5536udc, so there should at least be a dummy USB device to enumerate.
UOC has to be enabled. This controller switches the UDC PHY to port 4 and owns the mentionedIs there any output in the kernel messages on the host side complaining
about that device is
not answering? If not than USB device port is probably not connected to
UDC PHY. Please
check in BIOS setup that port 4 is assigned to UDC.
Nope, nothing at all shows up in the logs or the interrupt counts when the cable is plugged, neither for the host drivers nor the device drivers. (The quickest test I have is to hook the device up to itself - one A port and one B port.)
The BIOS is configured "correctly" if the manuals are to be trusted. Here are the relevant settings
OHCI: Enabled
EHCI: Enabled
UDC: Enabled
UOC: Disabled
Overcurrent reporting: Disabled
Port 4 assignment: Device