Hi All!
Unfortunately, I'm a total newb to driver development and I have a broken
driver that I have no idea whats going wrong.
Its a 1394 isocronous camera driver that was developed on W2K but had been
working on XP until SP2 was released. Now the driver will no longer load
itself.
The failure occurs on IOCallDriver which returns 0xC0120090. The error is
defined as STATUS_FLOAT_INVALID_OPERATION. I can not determine what that
error means.
The driver is in the process of initializing an address space to receive
quadlet write requests (status messages) from the camera. An isochronous
channel and bandwidth has not yet been allocated at this point.
Any hints or clues would be greatly appreciated!
Regards,
John