Hi Bryan, The USB/RS232 cable is a USB device, it shall has firmware in it, which works as a USB slave. What I need to do is have some code talk to this device via the Host controller - ISP1561. So, I need some code as usb-storage.c, maybe called usb-serial.c.
I am not sure how "usbtty" being used. Is it used when there is a USB/USB cable connected between the target and PC? Both ends of the cable are USB port, the PC end is a master, the target end is the slave. So usbtty running on the target is acting as the USB device. However it is not my case. The cable I have has one USB end, and one RS232 end. The USB end is connected to the target. I assume there is something in the chip within the cable acts as a USB slave device already. Thanks, Mike On 8/27/08, Bryan O'Donoghue <[EMAIL PROTECTED]> wrote: > On Wed, 27 Aug 2008 10:20:58 -0400 > "mike zheng" <[EMAIL PROTECTED]> wrote: > > > Or is there any other solution for me? I don't have to use the > > USB-RS232 cable. I just need the Uboot console from USB port. > > One more thing. > > If the isp1561 supports "slave" mode - you can implement usbdcore_isp1561.c > and > add fdti to usbtty... otherwise as previously stated you'll have to munge > something on top of some host controller code, and then plug that into the > serial layer independently. > > > -- > BOD > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
