Re: [avrdude-dev] Device names under cygwin

[E. Weddington]

On 16 Feb 2004 at 15:28, Charles Steinkuehler wrote:

> I need to compile a version of avrdude to run under windows (see 
> previous post about my problems with avr910 support), but I'm having 
> trouble with device names.
> 
> When I compile avrdude, it only works with /dev devices (ie: /dev/com1).
> 
> The pre-compiled versions I downloaded from the savannah site, however, 
> use 'normal' windows device names (ie: COM1).
> 
> How to I compile avrdude to use the 'normal' windows device names?  Do I 
> need a particular version of cygwin, or perhaps some compile-time flags?
> 
> Thanks in advance,
> 

IIRC, this has to do with the Cygwin DLL (cygwin1.dll) version. For version >= 
1.5.x, it 
requires the '/dev/comx' string. For version 1.3.x, you can just use a 'comx' 
string. 
This is a known issue with Cygwin, however I don't know what the Cygwin people 
are 
going to do about it (if anything). This problem will eventually go away when 
the 
Win32 API version of avrdude will be rolled into CVS. This version just uses 
the 
'comx' string and also has the main advantage of *not* using the Cygwin DLL at 
all. 
However, this version is still being discussed on this list, trying to get the 
last few 
wrinkles out.

For now, I would suggest just using '/dev/comx'. If you want, you can put that 
in your 
avrdude configuration file as the default. See the avrdude user manual for more 
information.

HTH
Eric