Hi all, We are using Philips ISP1362 usb controller on our ppc-embedded system. We have ported the phlips's driver, PHCI, to ppc. The Philips linux driver is that of 2002.
Following are problems tha we've found in our test: 1) ATL Interrupt doesn't work correctly. We have to use ATL_THRESHOLD_TIMEOUT, that has the minimun resolution 1 msec, to bypass it. 2) The latency from PTD completion. From a usb frame analyzer we have seen that the controller has gaps between every 4 64-bytes frames for 265 bytes PTD configured in bulk transmission. The limit of 265 byte for PTD is due to the end-point number. 3) The isochronous mode doesn' t work. That we've seen was we were loop on frame number, so the machine went to hang! >From the list I've seen that Wolfgang Denk has worked for that driver and test is for a lot of devices. I'd like to know from Wolfgang which driver is used? Is the driver that you are using is open source? Where can we get it? Thanks in advance! Jianliang Lu