Hi,
Occasional reader, here...
On Sat, Jan 23, 2016 at 03:29:50PM +0100, Johan Ström wrote:
> c) Would it make sense for libftdi to set rts/dts defaults to 1, as
> both Linux and FreeBSD seems to do this (when opening as a regular
> serial port)? Although, devices may use RTS/DTR for any purpose, it
> might be best to leave it alone..?
The setting of CTS/RTS is "standard" when opening a serial port. The
default for those signals is "inactive": "please don't send anything,
there is (probably) nobody listening".
Once you open the port, the signal should go active: "we're listening,
go ahead, send data.".
However, for "other-than-standard-serial-port" devices, where you'd
want a libftdi driver, the signal might be used for completely
different purposes. Say: "Detonate the bomb".
So a default in libftdi to set the signal might not be a good idea.
If you need it, the "set the signal" belongs in the layer that uses
libftdi. "libow" or whatever it is called in your case.
Roger.
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