Hello,

I use 'getch' to read the input from stdin, it seems not to work via
serial port using null-modem cable, is 'getch' not compatibal with the
serial port( com1) or some special settings needs to be set?

thanks

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one2001boy@yahoo.com <one2001boy@yahoo.com> wrote:
> Hello,

> I use 'getch' to read the input from stdin, it seems not to work via
> serial port using null-modem cable, is 'getch' not compatibal with the
> serial port( com1) or some special settings needs to be set?

You probably intended getchar().
getch() is used for screen-oriented applications.

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net

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Thomas Dickey wrote:


> 
>
> 
>
>
> You probably intended getchar().
> getch() is used for screen-oriented applications.
>
thanks so much for your help.

I realized the problem is more related to ioctl() function.
I tried to write my own terminal for com1,
/sbin/agetty is used as a terminal service and ioctl() functions
returns correctly, but the col and row size is zero.

did I miss something?  thanks.

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