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Re: Problems 2nd Serial Port
I believe I tested all the serial ports (except /dev/ttyS1). I remember /dev/ttyS0, /dev/ttyS2, and /dev/ttyS3 (RS-485) working.
On 13 Aug 2001 14:29:06 +0200, Magnus Rosenquist wrote:
> I have a program that listens on a device on a serial
> port, downloads some data and saves it to a file.
> I've successfully made this function on both the
> host-pc and the devboard using /dev/ttyS0. But
> I cannot make it work using the second serial port.
> As default (before doing any changes in the kernel), I
> see that serial port 0 is always enabled and that
> serial port 2 is also enabled.
> Using /dev/ttyS2 I manage to open the port but I
> cannot read any data from it. I've tried to change the
> kernel config to include 'Synchronous serial port support',
> but no change.
> Has anybody gotten the second serial port to work? How?
> I need to have both ports working, to prevent switching devices
> from one port to another...I will have a modem on the other port.