Yup, that's it. I'd call it a crappy H/W however it more or less works under Windows and that scarries me a lot, because now I'm nore sure whether it's just a faulty piece of H/W or the whole brand is not worth playing with. I've seen many posts that people got it to work ( 9pin and 25pin versions ) without problems so I believe that mine is somehow buggy. When minicom got frozen on write(), re-loading mct_u232 and usbserial didn't fix the problem. I had to reload usb-uhci and then it appeared to work again until it got frozen again.
I'm seeing the same story with Rx/Tx leds but under Linux. Modem indicates it's receiving and sending chars, but I'm not getting response to cmds at all. Another funny fact is ( under Win though ) that even if I was able to talk to a modem, I never managed to send a BREAK signal. The link indicator on the converter blinked but no data were send outside of it ( verified with serial port snooper ). Milan > > I had a very similar problem with the Belkin adapter using the mct_u232 > and never could get it to work. I had very similar problems - minicom > would freeze up after sending a few characters. > > One thing I noticed is that when the adapter was attached to a windows box > and working, the tx and rx lights would blink at appropriate times, but > when I attached it to the linux box, only the "link" light would flash > when I was trying to send data. Are you experiencing a similar problem? > > Sorry I can't be of more assistance - I eventually gave up and purchased > a keyspan adapter which has been working flawlessly. > > -Chris > > On Fri, 21 Jun 2002, Milan Novansky wrote: > > > Hi all, > > > > I've tried to use MCT U232-P25 ( 0x711/0x230 ) usb-serial convetor > > with kernel 2.4.18 ( usb-uhci, usbserial, mct_u232 ) but hasn't got any good > > results at all. When I connected to another unix system's serial console > > I was able to see received chars but was not able to send any ( 9600 8N1 ). > > When I connected to a modem I was able to type AT cmds which were echoed > > back ( no local echo ) but they returned no results ( seemed as return was not > > delivered ). Anyway when there was no device connected, typing several returns > > hanged minicom ( strace showed hang at write ). The same scenarios worked > > fine under windows ( I was even able to dial out with attached modem ). > > > > Any hints/solutions/pointers are highly appreciated > > > > Rgds, > > > > Milan > > > > > > > > ------------------------------------------------------- > > Sponsored by: > > ThinkGeek at http://www.ThinkGeek.com/ > > _______________________________________________ > > [EMAIL PROTECTED] > > To unsubscribe, use the last form field at: > > https://lists.sourceforge.net/lists/listinfo/linux-usb-users > > > ------------------------------------------------------- Sponsored by: ThinkGeek at http://www.ThinkGeek.com/ _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
