View Full Version : Puppy and USB 'com ports'
06-21-2007, 01:36 PM
I have just discovered Puppy Linux and would like to be able to use the sound card modes. I am trying digipup-1.342.iso but am having trouble because all my serial ports originate as USB ports. How do I, if possible, use the USB ports as COM ports in Puppy? They all work in Windoze so it is not a strict hardware issue. Thanks for your help!
06-22-2007, 12:32 AM
Not sure what you are trying to say about the ports, but if you are trying to convert then from one to another the drivers may not be compatible to do what you are trying to do.
From what I read, you are either taking a USB & changing the setting to make the computer think it is a com port or you are using an adapter to change the port. Either way things have to be compatible & as I find ALL my USB stuff work, I'd suspect what you are using isn't.
06-22-2007, 03:26 PM
Thanks for the reply, I probably should have been more specific. All I have are USB jacks with serial port converters on them. I need the Linux distro to see "serial ports" so I can configure the PTT lines for digital modes. Thanks for reading.
06-22-2007, 05:00 PM
Considering I am new to the linux game myself, please don't just take my word for it as there may just BE a way to make it work that I don't as of yet know about. - The former was just an educated guess based on what I thought you were doing & my knowledge of M$. & I'll admit that I haven't played with the ports in linux that much but everything else seems to work the same or more advanced than M$ does so I would think that if it can be done in M$ it can be done in linux provided the compatibility is there. Same as one would have with M$.
You might try asking on the Lockergnome forum - linux fanatic & see if they can help. If you can't get an answer here.
06-22-2007, 05:47 PM
Recent versions of Linux, which I assume puppy is, use something called udev to detect such devices and create entries for them in the device directory.
You should have some entries in the /dev file system with names like ttyUSB0 and ttyUSB1. For Linux to 'see serial ports' you give the utility you're using the name /dev/ttyUSB0 or /dev/ttyUSB1.
Does that answer your question?
06-23-2007, 02:52 PM
Thanks for the ideas, I dropped Puppy for Ubuntu and having scanned the hardware list I 'think' I can find the serial ports. Literally, the list is so 'busy' its hard to pick out the details. The USB printer, keyboard and mouse add to the confusion. It's not unlike fighting with com ports from the DOS days. Thanks for the help!
06-23-2007, 04:10 PM
I use digipup on my laptop. However, your problem is rather unique. I usually am able to plug in a serial device/parallel/usb device and it works. I would suggest that you make certain that /dev/stty0 is open as well as /dev/usb0. I use that particular usb address for an external hard drive (my laptop is otherwise limited to a 4gb internal). Also, if you are using a printer, make certain that the computer sees it as /dev/lpr0 (presuming that you are using the parallel port. That is about all I can suggest.