Bo Berglund wrote:
...
3) How can one enumerate the existing com ports on Linux?
In Windows I know
how to do this and thus I can get a list of valid ports for
the user to
select from. Is there some way also in Linux using FPC?
Quickest way I have found is to enumerate the device files in /dev
extracting all 'ttyxx' (comports) and 'ttyU' (usb ports).
This gives a
list of 'probables'. Then try to connect (using SynaSer for
example) to
verify actual usable ports in the list
On my Ubuntu 10 virtual machine I get this result from ls /dev/t*:
/dev/tty /dev/tty19 /dev/tty3 /dev/tty40 /dev/tty51 /dev/tty62
/dev/tty0 /dev/tty2 /dev/tty30 /dev/tty41 /dev/tty52 /dev/tty63
/dev/tty1 /dev/tty20 /dev/tty31 /dev/tty42 /dev/tty53 /dev/tty7
/dev/tty10 /dev/tty21 /dev/tty32 /dev/tty43 /dev/tty54 /dev/tty8
/dev/tty11 /dev/tty22 /dev/tty33 /dev/tty44 /dev/tty55 /dev/tty9
/dev/tty12 /dev/tty23 /dev/tty34 /dev/tty45 /dev/tty56 /dev/ttyS0
/dev/tty13 /dev/tty24 /dev/tty35 /dev/tty46 /dev/tty57 /dev/ttyS1
/dev/tty14 /dev/tty25 /dev/tty36 /dev/tty47 /dev/tty58 /dev/ttyS2
/dev/tty15 /dev/tty26 /dev/tty37 /dev/tty48 /dev/tty59 /dev/ttyS3
/dev/tty16 /dev/tty27 /dev/tty38 /dev/tty49 /dev/tty6
/dev/tty17 /dev/tty28 /dev/tty39 /dev/tty5 /dev/tty60
/dev/tty18 /dev/tty29 /dev/tty4 /dev/tty50 /dev/tty61
I am absolutely certain there there is a maximum of 2 com ports avilable
to my virtual machine so where did all of the others come from?
Looks a bit hard to go around opening all these ports to check if
they exist....
The "Simple Serial" zips use SynaSer and there is a SynaSer routine used
by my programs to list the serial ports.
http://www.turbocontrol.com/simpleserial.htm
--
_______________________________________________
Lazarus mailing list
[email protected]
http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
