I asked about serial communications in my thread about embedded development and I was told to look at the serial unit, which I have done now.
I also looked at the Lazarus wiki about hardware interfaces where there is a section about serial communications, which actually points to the SynaSer system. (http://wiki.lazarus.freepascal.org/Hardware_Access#Serial_Communication) There were also replies with brief discussions about AsyncPro clone development etc. Now after having a deeper look at the two suggseted comm systems serial and syanaser I am not very comfortable.... It looks like the serial.pp unit implements a blocking system even though it is not clearly written as such. But the synaser unit is definitely blocking. Since I am used to having event driven serial communication my question is really twofold: 1) Is serial communication with events not possible in FPC on Linux? 2) How can one use blocking reads when there is no way to know exactly when data will arrive? Everything else will stop when waiting for data, right? Additionally I have another nonrelated question: 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? Best regards, Bo Berglund -- _______________________________________________ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
