Re: serial ports
On Monday 14 May 2007 20:49, Pavel A. da Mek wrote: > When I want to use serial ports, shall I write separate code for Windows > and for Linux, or is there some library function which would allow to do it > in the platform independent way? I hit the same problem in 2004, and I wrote an abstraction layer and 2 different implementations. Basically, I implemented open(), close(), read() and write() using termios.h in linux and the Windows API (CreateFile(), ReadFile(), WriteFile() ...) in windows. read() and write() are implemented in a blocking way, because I'm used to put all the dialing stuff in a separate thread. If you want, I can send you the relevant code: be carefull, it is a beautiful example of bad C C++ mixing. -- Nicola ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: serial ports
Pavel A. da Mek wrote: > When I want to use serial ports, shall I write separate code for Windows and > for Linux, or is there some library function which would allow to do it in > the platform independent way? I have written portable code for this with timeouts for read and write operations. Because Windows don't know a generic select() like call but use special SetCommTimeouts() call I don't know if the g_io_* calls works for Serial port handles. I recommend the following literature to start with this task. POSIX - "Serial Programming Guide for POSIX Operating Systems" 5th Edition by Michael R. Sweet http://www.easysw.com/~mike/serial/ Windows - "Windows Serial Port Programming" by Robertson Bayer http://www.robbayer.com/files//serial-win.pdf - "Serial Communication in Win32" by Allen Denver http://msdn2.microsoft.com/en-us/library/ms810467.aspx Cheers, Andy ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: serial ports
On Tue, May 15, 2007 at 02:46:22AM +0300, Tor Lillqvist wrote: > John Coppens writes: > > If I'm not mistaken (I don't use windows), look at the g_io functions, I > > believe they are portable to Windows too. There may be a problem with the > > names of the devices (COM1: vs /dev/ttyS0) or so, but that is relatively > > easy to solve, I'd say. > > You are too optimistic. How well the g_io functions work with serial > port devices is quite unclear. Windows is not Unix. Typically you have > to use specialized API to talk to each kind of device or IPC channel. Yes! I Agree. A good start to understand serial ports are to read chapter 18 in "Advanced programming int the Unix Environment", Richard Stevens, ISBN 0-201-56317-7. -- Göran Hasse Göran Hasseemail: [EMAIL PROTECTED] Tel: 08-6949270 Raditex AB http://www.raditex.se Planiavägen 15, 1tr Mob: 070-5530148 131 34 NACKA, SWEDEN OrgNr: 556240-0589 VAT: SE556240058901 -- ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: serial ports
John Coppens writes: > If I'm not mistaken (I don't use windows), look at the g_io functions, I > believe they are portable to Windows too. There may be a problem with the > names of the devices (COM1: vs /dev/ttyS0) or so, but that is relatively > easy to solve, I'd say. You are too optimistic. How well the g_io functions work with serial port devices is quite unclear. Windows is not Unix. Typically you have to use specialized API to talk to each kind of device or IPC channel. --tml ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: serial ports
On Mon, 14 May 2007 18:49:02 - "Pavel A. da Mek" <[EMAIL PROTECTED]> wrote: > When I want to use serial ports, shall I write separate code for > Windows and for Linux, or is there some library function which would > allow to do it in the platform independent way? If I'm not mistaken (I don't use windows), look at the g_io functions, I believe they are portable to Windows too. There may be a problem with the names of the devices (COM1: vs /dev/ttyS0) or so, but that is relatively easy to solve, I'd say. John ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: serial ports
On Mon, 2007-05-14 at 18:49 +, Pavel A. da Mek wrote: > When I want to use serial ports, shall I write separate code for Windows and > for Linux, or is there some library function which would allow to do it in > the platform independent way? There's definitely no GTK library calls to support this type of thing, so you can either maintain separate code for win32 and linux (ifdefs or something) or find a reliable, third-party library that fits your technical and licensing requirements. I have heard that doing any kind of serial port programming on Windows is very very painful. On Linux it's easy. > > ___ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
serial ports
When I want to use serial ports, shall I write separate code for Windows and for Linux, or is there some library function which would allow to do it in the platform independent way? ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
