Re: any known working USB/serial converters?
Gene Heskett wrote: On Tuesday 07 July 2009, Steve Underwood wrote: Gene Heskett wrote: On Tuesday 07 July 2009, Steve Underwood wrote: Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. The log shown there lists a Prolific pl2303 USB serial converter chip. I've been using various converters based on those with Linux for several years, and never had a problem. I use them at speeds up to 460800bps. Steve yes, and in a low traffic situation, they will throw away the first byte of a packet about 10% of the time. That is enough to make them worthless for most apps. Use FTDI stuff. My experience is completely the opposite. I found the FTDI devices useless. They keep hiccuping or locking up completely. I've used the prolific devices in applications from intermittent bursts at 1200bps, to endless streaming at 460800bps. I also use them in applications where the adaptor is powering opto couplers, and the voltages end up way off. I've never had problems. Steve We will agree to disagree then. I have never had an FTDI deice do anything but work with one singular exception, it was on the end of 2 usb extension cords, with the far end devices plugged into a separate circuit, and the hub did not survive a very close lightning hit, one of maybe .1 secs between the flash and the crack. pl2303's will not work to my ups, nor will they work for heyu about 25% of the time. FTDI's Just Work(TM) for both. Oh wonderful. After years of perfectly good PL2303 performance, the very last kernel update for FC9 before it just went EOL has broken PL2303 support. I'm getting the occasional OOPS. :-( Steve -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
any known working USB/serial converters?
a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. 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-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. The log shown there lists a Prolific pl2303 USB serial converter chip. I've been using various converters based on those with Linux for several years, and never had a problem. I use them at speeds up to 460800bps. Steve -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
Hi, Steve Underwood ste...@coppice.org writes: Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. well, don't buy an adaptor that needs the ark3116 module. I have one. But it doesn't support sending break, which renders it useless for me. Besides that the adaptor seems to work ;). Regards hmw -- biff4emacsen - A biff-like tool for (X)Emacs http://www.c0t0d0s0.de/biff4emacsen/biff4emacsen.html Flood - Your friendly network packet generator http://www.c0t0d0s0.de/flood/flood.html -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
On Tue, 7 Jul 2009 09:10:01 -0400 (EDT) Robert P. J. Day rpj...@crashcourse.ca wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. pl2303 is pretty standard stuff. Check the baud rates and the like would be my first guess. If they seem to match and csize and the rest match at both ends then see if different baud rates each end helps (eg if the board you have uses some strange non standard clock) Alan -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
On Tue, 7 Jul 2009, Alan Cox wrote: On Tue, 7 Jul 2009 09:10:01 -0400 (EDT) Robert P. J. Day rpj...@crashcourse.ca wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. pl2303 is pretty standard stuff. Check the baud rates and the like would be my first guess. If they seem to match and csize and the rest match at both ends then see if different baud rates each end helps (eg if the board you have uses some strange non standard clock) i've spent quite a bit of time messing with this. in a nutshell, i'm trying to talk to the serial console of a beagleboard via a USB port on my laptop. if i run out of my laptop to a targus port replicator, from there to a null-modem cable, and then to one of those IDC serial cables (so i can connect to the 2x5 10-pin connector on the BB), that works *every* *time*. flawlessly. for simplicity, if i try to replace the bulky port replicator with a simple USB-serial converter, then null-modem and IDC cable, that fails -- what i get (after verifying all the same minicom settings) is junk being dumped to the screen, exactly as if the baud rate was wrong but this is being done without touching any of the minicom settings. in my situation, this is absolutely reproducible -- the targus port replicator always works, the USB-serial converter never. i'm baffled. now, this is the only USB-serial converter i've ever tried so i'm tempted to pop down to the local geek store and just pick up a different brand to see if it's still reproducible. 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-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
On Tuesday 07 July 2009, Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. prolific adapters are well known trouble. FTDI seem to be pretty transparent. I have several that Just Work(TM). 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 -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp My father? My father left when I was quite young. Well actually, he was asked to leave. He had trouble metabolizing alcohol. -- George Carlin -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
On Tuesday 07 July 2009, Steve Underwood wrote: Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. The log shown there lists a Prolific pl2303 USB serial converter chip. I've been using various converters based on those with Linux for several years, and never had a problem. I use them at speeds up to 460800bps. Steve yes, and in a low traffic situation, they will throw away the first byte of a packet about 10% of the time. That is enough to make them worthless for most apps. Use FTDI stuff. -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp Wisdom is rarely found on the best-seller list. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
On Tuesday 07 July 2009, Alan Cox wrote: On Tue, 7 Jul 2009 09:10:01 -0400 (EDT) Robert P. J. Day rpj...@crashcourse.ca wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. pl2303 is pretty standard stuff. No it isn't Alan. We found on the heyu list that 99% of the miss-comm problems heyu was logging could be laid on their doorstep. FTDI stuff just works. Check the baud rates and the like would be my first guess. If they seem to match and csize and the rest match at both ends then see if different baud rates each end helps (eg if the board you have uses some strange non standard clock) Alan -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp Wisdom is rarely found on the best-seller list. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
Gene Heskett wrote: On Tuesday 07 July 2009, Steve Underwood wrote: Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. The log shown there lists a Prolific pl2303 USB serial converter chip. I've been using various converters based on those with Linux for several years, and never had a problem. I use them at speeds up to 460800bps. Steve yes, and in a low traffic situation, they will throw away the first byte of a packet about 10% of the time. That is enough to make them worthless for most apps. Use FTDI stuff. My experience is completely the opposite. I found the FTDI devices useless. They keep hiccuping or locking up completely. I've used the prolific devices in applications from intermittent bursts at 1200bps, to endless streaming at 460800bps. I also use them in applications where the adaptor is powering opto couplers, and the voltages end up way off. I've never had problems. Steve -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
On Tue, 7 Jul 2009, Gene Heskett wrote: On Tuesday 07 July 2009, Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. prolific adapters are well known trouble. FTDI seem to be pretty transparent. I have several that Just Work(TM). that's what i vaguely recall hearing once upon a time, so it's nice to have at least a bit of confirmation that i should hie me hence to the geek store and pick up another brand to test. thanks. 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-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
Robert P. J. Day wrote: i've spent quite a bit of time messing with this. in a nutshell, i'm trying to talk to the serial console of a beagleboard via a USB port on my laptop. if i run out of my laptop to a targus port replicator, from there to a null-modem cable, and then to one of those IDC serial cables (so i can connect to the 2x5 10-pin connector on the BB), that works *every* *time*. flawlessly. for simplicity, if i try to replace the bulky port replicator with a simple USB-serial converter, then null-modem and IDC cable, that fails -- what i get (after verifying all the same minicom settings) is junk being dumped to the screen, exactly as if the baud rate was wrong but this is being done without touching any of the minicom settings. in my situation, this is absolutely reproducible -- the targus port replicator always works, the USB-serial converter never. i'm baffled. now, this is the only USB-serial converter i've ever tried so i'm tempted to pop down to the local geek store and just pick up a different brand to see if it's still reproducible. Dumb question - do you need the RS-232 control lines? If so, a lot of the cheap adapters do not support them, or only support a limited set. The biggest problem seams to be missing the hardware flow control lines. (CTS/RTS) Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup! signature.asc Description: OpenPGP digital signature -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
On Tuesday 07 July 2009, Steve Underwood wrote: Gene Heskett wrote: On Tuesday 07 July 2009, Steve Underwood wrote: Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. The log shown there lists a Prolific pl2303 USB serial converter chip. I've been using various converters based on those with Linux for several years, and never had a problem. I use them at speeds up to 460800bps. Steve yes, and in a low traffic situation, they will throw away the first byte of a packet about 10% of the time. That is enough to make them worthless for most apps. Use FTDI stuff. My experience is completely the opposite. I found the FTDI devices useless. They keep hiccuping or locking up completely. I've used the prolific devices in applications from intermittent bursts at 1200bps, to endless streaming at 460800bps. I also use them in applications where the adaptor is powering opto couplers, and the voltages end up way off. I've never had problems. Steve We will agree to disagree then. I have never had an FTDI deice do anything but work with one singular exception, it was on the end of 2 usb extension cords, with the far end devices plugged into a separate circuit, and the hub did not survive a very close lightning hit, one of maybe .1 secs between the flash and the crack. pl2303's will not work to my ups, nor will they work for heyu about 25% of the time. FTDI's Just Work(TM) for both. -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp Next to being shot at and missed, nothing is really quite as satisfying as an income tax refund. -- F. J. Raymond -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
On Tuesday 07 July 2009, Robert P. J. Day wrote: On Tue, 7 Jul 2009, Gene Heskett wrote: On Tuesday 07 July 2009, Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. prolific adapters are well known trouble. FTDI seem to be pretty transparent. I have several that Just Work(TM). that's what i vaguely recall hearing once upon a time, so it's nice to have at least a bit of confirmation that i should hie me hence to the geek store and pick up another brand to test. thanks. Since they don't generally say what chipset is in the box, take your lappy along and tail the log to see what it signs on as when plugged in. I am about to do that when I purchase a new digital camera to replace my aging and very battery hungry Olympus C-3020. Fuji has a nice one, but if I can't suck its pix from it with linux, that's a show stopper. 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 -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. https://www.nrahq.org/nrabonus/accept-membership.asp You have no real enemies. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
On Tue, 07 Jul 2009 11:30:01 -0400 Gene Heskett gene.hesk...@verizon.net wrote: On Tuesday 07 July 2009, Alan Cox wrote: On Tue, 7 Jul 2009 09:10:01 -0400 (EDT) Robert P. J. Day rpj...@crashcourse.ca wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. pl2303 is pretty standard stuff. No it isn't Alan. We found on the heyu list that 99% of the miss-comm problems heyu was logging could be laid on their doorstep. FTDI stuff just works. Is that statistically correlated for market share and also for the fact that all your users are presumably using the same exact product that came with the X10 hardware ? pl2303 stuff just works as much as ftdi does (and both work well). The pl2303 has one minor quirk which is that on mode changes (baud/char size switch) it seems to dump its entire internal buffering so you lose more data as you switch but thats really it. Alan -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. http://www.dealextreme.com/details.dx/sku.2537 This one works perfectly for me. The only downside is that shipping takes a week or two. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
Robert P. J. Day wrote: On Tue, 7 Jul 2009, Gene Heskett wrote: On Tuesday 07 July 2009, Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. prolific adapters are well known trouble. FTDI seem to be pretty transparent. I have several that Just Work(TM). that's what i vaguely recall hearing once upon a time, so it's nice to have at least a bit of confirmation that i should hie me hence to the geek store and pick up another brand to test. thanks. I also use an FTDI unit which hasn't failed me. Uses the ftdi_sio module and is identified as a FTCEGM4N in dmesg (USB ID 0403:6001). -- - Rick Stevens, Systems Engineer ri...@nerd.com - - AIM/Skype: therps2ICQ: 22643734Yahoo: origrps2 - -- - A friend said he climbed to the top of Mount Rainier. My view is - -that if there's no elevator, it must not be that interesting. - -- -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
Robert P. J. Day rpj...@crashcourse.ca writes: in a nutshell, i'm trying to talk to the serial console of a beagleboard via a USB port on my laptop. Are both ends using the same signaling voltage? Just because something is wired to a DB-9 (or DB-25) doesn't mean it talks +/- 12v (or even +/- 5v.) My Garmin GPS takes extreme liberties with the signaling voltages and only certain serial adapters recognize the 0-5v signal as a usable rs232-like signal. -wolfgang -- Wolfgang S. Rupprecht Android 1.5 (Cupcake) and Fedora-11 -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters? [drifting off...]
On Tue, Jul 07, 2009 at 11:00:26AM -0700, Rick Stevens wrote: Robert P. J. Day wrote: On Tue, 7 Jul 2009, Gene Heskett wrote: On Tuesday 07 July 2009, Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. prolific adapters are well known trouble. FTDI seem to be pretty transparent. I have several that Just Work(TM). that's what i vaguely recall hearing once upon a time, so it's nice to have at least a bit of confirmation that i should hie me hence to the geek store and pick up another brand to test. thanks. I also use an FTDI unit which hasn't failed me. Uses the ftdi_sio module and is identified as a FTCEGM4N in dmesg (USB ID 0403:6001). Do these things work both ways? i.e., I assume they would work if one plugged the USB end into one's computer and got serial out the other end. But how about plugging the usb end into, e.g., a UPS and taking the serial end back to the linux box? someone earlier mentioned a tripplite UPS which got me to thinking of that situation: tripplite no longer offers USB-compatible software for Linux--their linux versions are still serial only. makes one wonder if one of these things would bridge the gap. -- Fred Smith -- fre...@fcshome.stoneham.ma.us - Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven. -- Matthew 7:21 (niv) - pgpOGhBMXuWKC.pgp Description: PGP signature -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
Konstantin Svist wrote: http://www.dealextreme.com/details.dx/sku.2537 This one works perfectly for me. The only downside is that shipping takes a week or two. But there are so many other cool toys that you can order as well at the same time. :) -- Robin Laing -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters? [drifting off...]
fred smith wrote: Do these things work both ways? i.e., I assume they would work if one plugged the USB end into one's computer and got serial out the other end. But how about plugging the usb end into, e.g., a UPS and taking the serial end back to the linux box? someone earlier mentioned a tripplite UPS which got me to thinking of that situation: tripplite no longer offers USB-compatible software for Linux--their linux versions are still serial only. makes one wonder if one of these things would bridge the gap. If you are talking about plugging the USB end into the UPS, it is not going to work unless the UPS has drivers for that adapter. Remember, the UPS would be the computer end of the adapter when trying to use it that way. On the other hand, what device does the UPS look like when USB connected? Does it show up as a USB serial device? If so, you can tell the Tripplite software to use that serial port. Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup! signature.asc Description: OpenPGP digital signature -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters? [drifting off...]
fred smith wrote: On Tue, Jul 07, 2009 at 11:00:26AM -0700, Rick Stevens wrote: Robert P. J. Day wrote: On Tue, 7 Jul 2009, Gene Heskett wrote: On Tuesday 07 July 2009, Robert P. J. Day wrote: a while back, i was whining about the lack of functionality of a particular USB/serial converter: http://osdir.com/ml/fedora-test-list/2009-05/msg00398.html does anyone have such a converter that just plain works out of the box? i'm more than happy to buy and try another brand if it's the prolific product that's causing the trouble. prolific adapters are well known trouble. FTDI seem to be pretty transparent. I have several that Just Work(TM). that's what i vaguely recall hearing once upon a time, so it's nice to have at least a bit of confirmation that i should hie me hence to the geek store and pick up another brand to test. thanks. I also use an FTDI unit which hasn't failed me. Uses the ftdi_sio module and is identified as a FTCEGM4N in dmesg (USB ID 0403:6001). Do these things work both ways? i.e., I assume they would work if one plugged the USB end into one's computer and got serial out the other end. But how about plugging the usb end into, e.g., a UPS and taking the serial end back to the linux box? It should work, provided the UPS knew how to talk to the USB side of the device (e.g. had a driver for it, etc.). There's nothing special about a computer's USB port as opposed to some other device with a USB port. someone earlier mentioned a tripplite UPS which got me to thinking of that situation: tripplite no longer offers USB-compatible software for Linux--their linux versions are still serial only. makes one wonder if one of these things would bridge the gap. If you were to do a UPS-USB-SERIAL-SERIAL-USB-computer thing, you'd need a female-female null-modem adapter between the serial ports, of course. -- - Rick Stevens, Systems Engineer ri...@nerd.com - - AIM/Skype: therps2ICQ: 22643734Yahoo: origrps2 - -- - Grabel's Law: 2 is not equal to 3--not even for large values of 2. - -- -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters? [drifting off...]
On Tue, Jul 07, 2009 at 02:47:01PM -0500, Mikkel L. Ellertson wrote: fred smith wrote: Do these things work both ways? i.e., I assume they would work if one plugged the USB end into one's computer and got serial out the other end. But how about plugging the usb end into, e.g., a UPS and taking the serial end back to the linux box? someone earlier mentioned a tripplite UPS which got me to thinking of that situation: tripplite no longer offers USB-compatible software for Linux--their linux versions are still serial only. makes one wonder if one of these things would bridge the gap. If you are talking about plugging the USB end into the UPS, it is not going to work unless the UPS has drivers for that adapter. Remember, the UPS would be the computer end of the adapter when trying to use it that way. On the other hand, what device does the UPS look like when USB connected? Does it show up as a USB serial device? If so, you can tell the Tripplite software to use that serial port. Um, not sure how to tell which usb device it is... I've installed NUT and configured it to use HAL to find the UPS. Apparently, HAL finds it, because (sometimes) the Gnome power manager appears in the upper panel and reports there's a UPS connected. As far as I can tell, that's the only UI available using NUT in that mode. but I could be wrong. I find the NUT docs to be somewhat inconsistent (which is understandable.) So, my original question is more from curiosity than need. -- Fred Smith -- fre...@fcshome.stoneham.ma.us - For the word of God is living and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart. Hebrews 4:12 (niv) -- pgpfxQK5FtQQM.pgp Description: PGP signature -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: any known working USB/serial converters?
| From: Konstantin Svist fry@gmail.com | http://www.dealextreme.com/details.dx/sku.2537 | This one works perfectly for me. | The only downside is that shipping takes a week or two. Which chipset does it use? Of course DX might change that without changing the SKU. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
