https://bugzilla.novell.com/show_bug.cgi?id=795366
https://bugzilla.novell.com/show_bug.cgi?id=795366#c0 Summary: SerialPort.GetPortNames() doesn't include /dev/ttyACM* Classification: Mono Product: Mono: Class Libraries Version: 2.10.x Platform: All OS/Version: Linux Status: NEW Severity: Normal Priority: P5 - None Component: System AssignedTo: mono-bugs@lists.ximian.com ReportedBy: domi...@baudvine.net QAContact: mono-bugs@lists.ximian.com Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.4 (KHTML, like Gecko) Ubuntu/12.10 Chromium/22.0.1229.94 Chrome/22.0.1229.94 Safari/537.4 GetPortNames() returns an array of available serial ports on the system. I was a little surprised to find that it failed to show /dev/ttyACM0 on my system. ttyACM* is where (at least on my system, Mint 14) various serial-over-USB devices end up, in this case my Arduino and the RP6, an atmega32-based robot. It's easy enough to work around with a symlink, but that doesn't make for very portable code. Browsing the source for Mono 2.11 and 3.0.4 it looks like GetPortNames() on Linux searches for /dev/ttyS* and /dev/ttyUSB*, ignoring /dev/ttyACM*. The kernel docs (https://www.kernel.org/doc/Documentation/usb/acm.txt) inform me that /dev/ttyACM* is intended for serial modems, so presumably it's more widely useful than just for Arduino et al. Reproducible: Always Steps to Reproduce: 1. Connect Arduino (or various other devices) 2. Call System.IO.Ports.SerialPort.GetPortNames() 3. Observe return value. Actual Results: The returned array of String contains only /dev/ttyS* entries. There are no /dev/USB* devices on my system, so that absence is expected. Expected Results: The returned array of String should have included the /dev/ttyACM0 entry that is present on my system. I'm using Mono 2.10.8, but the source for 3.0.2 contains the same issue. I'm not sure why these devices are presented as ACM, which is apparently a protocol for serial modems - but a quick search indicates that at least the Arduino serial interface is commonly presented as /dev/ttyACM*. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug. You are the assignee for the bug. _______________________________________________ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs