Ok, now I've gotten it to be recognized by the kernel and it sees that it is an FTDI type device. It creates the file in /proc/bus/usb as well. I have setup all my devices using mknod /dev/usb/ttyUSB0 c 188 0 etc.. But when I try to do an stty -F /dev/usb/ttyUSB0 all I get is...
stty: /dev/usb/ttyUSB0: No such device Did I miss a step? Peter On 9-Jul-07, at 8:44 PM, Peter Warrick wrote: > You nailed it. That's what it was. The USB port is hooked up > backwards on this thing. Thanks for the help! > > Peter > > On 9-Jul-07, at 8:11 PM, Alan Stern wrote: > >> On Mon, 9 Jul 2007, Peter Warrick wrote: >> >>> Apologies if this has been written about before but I was not >>> able to >>> find anything in the archives for this specific issue. >>> >>> I have a device running kernel 2.6.15 with everything compiled into >>> the kernel for USB serial support. >>> >>> I've tried multiple usb serial converters (FTDI, KeySpan, PL2303) >>> and >>> I can't get any of them to work. I've plugged them all into my linux >>> workstation and they all come up just fine so I know they work with >>> linux. I've even checked the driver source and they are identical to >>> what I have on my linux workstation. >>> >>> The best I've seen so far is that the Keyspan at least gets >>> something >>> to be spit out to /var/log/messages... >>> >>> Jul 9 18:13:28 host user.debug kernel: hub 1-0:1.0: state 5 ports 2 >>> chg 0000 evt 0002 >>> Jul 9 18:13:28 host user.debug kernel: tangox-ehci-hcd tangox-ehci- >>> hcd: GetStatus port 1 status 001002 POWER sig=se0 CSC >>> Jul 9 18:13:28 host user.debug kernel: hub 1-0:1.0: port 1, status >>> 0100, change 0001, 12 Mb/s >>> Jul 9 18:13:28 host user.debug kernel: hub 1-0:1.0: debounce: port >>> 1: total 100ms stable 100ms status 0x100 >>> >>> That's it. The FTDI and the PL2303 don't cause any output to /var/ >>> log/ >>> messages when plugged in. >>> >>> I checked /proc/bus/usb and it was empty so I used the command >>> mount - >>> t usbfs none /proc/bus/usb/ and that fixed that up. I now have a >>> 001/, 002/, and a devices file. >>> >>> Here's what I have in the /var/log/messages in terms of usb. It >>> appears that the everything installed correctly and that hotplug is >>> installed as well. >> >>> Jul 9 18:09:56 host user.info kernel: usb 2-1: new low speed USB >>> device using tangox-ohci-hcd and address 2 >>> Jul 9 18:09:56 host user.err kernel: usb 2-1: device descriptor >>> read/ >>> 64, error -145 >>> Jul 9 18:10:10 host user.info kernel: usb 2-1: new low speed USB >>> device using tangox-ohci-hcd and address 3 >>> Jul 9 18:10:11 host user.err kernel: usb 2-1: device descriptor >>> read/ >>> 64, error -145 >>> >>> I don't want to spam the message so let me know if there is anything >>> else that could help diagnose this problem. I've been working on >>> this >>> for about a month and I've tried compiling the modules right into >>> the >>> kernel and also just leaving everything as modules. Neither >>> works. Is >>> there something I've missed? The only thing I can think of is that I >>> read something about BIOS settings but this device doesn't have a >>> BIOS in terms of a PC. As far as I know, everything is on. >>> >>> Thanks for any help or suggestions. >> >> It's possible that you've got a wiring error on your board. For >> instance, swapping the D+ and D- lines could cause something like >> this. >> >> Alan Stern >> > > > ---------------------------------------------------------------------- > --- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Linux-usb-users@lists.sourceforge.net > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-users ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
