Re: serial.c (half duplex support) (2nd posting)

kees (kees@schoen.nl)
Sat, 23 Oct 1999 14:56:55 +0200 (MEST)


Hello Ted,

Given the fact that _IF_ the status of ioctl( fd, TIOCSERGETLSR, &result)
after the write call is correct, my halfduplex software (Hart) works fine
_AND_
the ( info->xmit_buf might be considered as a SOFTWARE FIFO in
addition to the internal (fifo) registers

I have the following suggestion:

Make the result of ioctl( fd, TIOCGETSLR, &value) reflect the status
of the *hardware* bits as well the value of ( info->xmit_cnt > 0)
in get_lsr_info.

In this case even if the data has not reached the chip, the transmitter
is not flagged empty, which to my view is correct.

Regards

Kees

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