On Fri, 8 May 2009, Robert L Cochran wrote: > I do not have a problem with FTDI-based UARTs like the FT232R > devices. I've been merrily programming Arduino devices on F11 using > the FTDI uarts. I think the PL2303 you have is also known as the > Dynex USB-to-Serial converter, and I have one of those. I'll give it > a try tomorrow. > > It could be that the PL2303 need a kernel config turned on. But when > I've used (what I think are) equivalent devices in the past, they > have always worked great in Fedora kernels. > > Please note that my username belongs to all of these groups: > > uucp > dialout <--- this one is important in F11 for /dev/ttyUSBn > lock > wheel > > I was getting nastygrams from Arduino's IDE until I updated my group > memberships. > > Bob keep in mind that, at least from what i've seen, i'm not getting any complaints from anything when i plug in the converter. /var/log/messages shows nothing out of the ordinary, i simply get junk in my minicom session. using a targus port replicator with a built in converter works fine, it's just that prolific technology converter that seems to cause grief. i may buy another brand to see if that makes any difference. rday p.s. both solutions require the usbserial module, but the targus uses the mct_u232 on top of that, while the PL converter uses pl2303. if you have a device that uses the pl2303 module, i'd be interested in knowing if that works. > > > Robert P. J. Day wrote: > > here's what's happening. f11 x86_64 updated beta, connected to an > > embedded (beagleboard) system thusly: > > > > host USB port <-> > > regular USB cable <-> > > targus port replicator with serial port <-> > > null modem cable <-> > > everex PC AT cable (DB9 to 10-pin connector) > > > > works fine -- minicom at 115200 8N1, no flow control, and device file > > /dev/ttyUSB0. when i plug it in, my host /var/log/messages appears > > thusly: > > > > ay 8 19:47:19 localhost kernel: usb 2-1.4: new full speed USB device > > using ohci_hcd and address 74 > > May 8 19:47:19 localhost kernel: usb 2-1.4: New USB device found, > > idVendor=0711, idProduct=0230 > > May 8 19:47:19 localhost kernel: usb 2-1.4: New USB device strings: > > Mfr=1, Product=2, SerialNumber=3 > > May 8 19:47:19 localhost kernel: usb 2-1.4: Manufacturer: USB-RS232 > > Interface Converter > > May 8 19:47:19 localhost kernel: usb 2-1.4: SerialNumber: 204395 > > May 8 19:47:19 localhost kernel: usb 2-1.4: configuration #1 chosen > > from 1 choice > > May 8 19:47:19 localhost kernel: mct_u232 2-1.4:1.0: MCT U232 > > converter detected > > May 8 19:47:19 localhost kernel: usb 2-1.4: MCT U232 converter now > > attached to ttyUSB0 > > May 8 19:47:19 localhost NetworkManager: <info> (ttyUSB0): ignoring > > due to lack of mobile broadband capabilties > > > > looks good, and i'm connected to the console on the beagle board. > > > > what i want to do now is replace the clunky targus port replicator > > with a USB-serial converter to give me: > > > > host USB port <-> > > no-name USB-serial converter cable <-> > > null modem cable <-> > > everex PC AT cable (DB9 to 10-pin connector) > > > > but i've yet to get that to work properly. when i plug in the > > converter, i get: > > > > May 8 19:57:21 localhost kernel: usb 2-1: new full speed USB device > > using ohci_hcd and address 78 > > May 8 19:57:22 localhost kernel: usb 2-1: New USB device found, > > idVendor=067b, idProduct=2303 > > May 8 19:57:22 localhost kernel: usb 2-1: New USB device strings: > > Mfr=1, Product=2, SerialNumber=0 > > May 8 19:57:22 localhost kernel: usb 2-1: Product: USB-Serial > > Controller > > May 8 19:57:22 localhost kernel: usb 2-1: Manufacturer: Prolific > > Technology Inc. > > May 8 19:57:22 localhost kernel: usb 2-1: configuration #1 chosen > > from 1 choice > > May 8 19:57:22 localhost kernel: pl2303 2-1:1.0: pl2303 converter > > detected > > May 8 19:57:22 localhost kernel: usb 2-1: pl2303 converter now > > attached to ttyUSB0 > > May 8 19:57:22 localhost NetworkManager: <info> (ttyUSB0): ignoring > > due to lack of mobile broadband capabilties > > > > except that what i see in minicom is crap -- lots of unprintable > > characters, as if it's running at the wrong baud rate or something. i > > didn't do anything special when i plugged in the converter, and here's > > the first few lines from "modinfo pl2303": > > > > filename: > > /lib/modules/2.6.29.2-129.fc11.x86_64/kernel/drivers/usb/serial/pl2303.ko > > license: GPL > > description: Prolific PL2303 USB to serial adaptor driver > > srcversion: EF203DC966F54AFA826B33F > > ... > > > > is there a known issue with USB-serial converters? i just noticed > > that that module has a single load-time parameter: > > > > debug:Debug enabled or not (bool) > > > > so i guess i can try that next and see what happens. but i was > > expecting this to work right out of the box, as they say. > > > > rday > > -- > > > > ======================================================================== > > Robert P. J. Day Waterloo, Ontario, CANADA > > > > Linux Consulting, Training and Annoying Kernel Pedantry. > > > > Web page: http://crashcourse.ca > > Linked In: http://www.linkedin.com/in/rpjday > > Twitter: http://twitter.com/rpjday > > ======================================================================== > > > > > > -- > fedora-test-list mailing list > fedora-test-list@xxxxxxxxxx > To unsubscribe: > https://www.redhat.com/mailman/listinfo/fedora-test-list > ======================================================================== Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Annoying Kernel Pedantry. Web page: http://crashcourse.ca Linked In: http://www.linkedin.com/in/rpjday Twitter: http://twitter.com/rpjday ======================================================================== -- fedora-test-list mailing list fedora-test-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-test-list
