On Tue, Mar 03, 2009 at 09:10:02AM -0500, Jon Smirl wrote: > On Tue, Mar 3, 2009 at 1:04 AM, Greg KH <greg@xxxxxxxxx> wrote: > > > > On Tue, Mar 03, 2009 at 12:06:10AM -0500, Jon Smirl wrote: > > > I have an Olimex ARM-USB-OCD which I haven't used in a while. I just > > > got it out and tried using it on 2.6.28. I can't get the serial port > > > and JTAG to work simultaneously. It appears to me that ftdi-sio is > > > interfering with the user space jtag program. I get this in the log > > > file when I use the user space program. > > > > > > usb 7-2: usbfs: interface 1 claimed by ftdi_sio while 'jtag' sets config #1 > > > > > > If I unload ftdi-sio I can use the device. > > > > > > 7-2:1.0 says its driver is usbfs > > > 7-2:1.1 says its driver is ftdi_sio > > > > > > I tried echo -n 7-2:1.0 >unbind on usbfs but it didn't help. > > > > You need to unbind the ftdi_sio driver and then use the jtag userspace > > program. > > > > That program should be the one doing the unbinding, there's a usbfs > > ioctl to do just that. > > So I can't use the serial port and the jtag at the same time? No you can not. > If I unbind ftdi_sio it closes my terminal connection. > > Is there a way for libftdi to allow access to the jtag without > unbinding ftdi_sio? Nope, can't have 2 drivers talking to the same device at the same time, things would get very confusing very quickly. good luck, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
