How to access a serial port at a non-standard address

QNX DEVELOPERS General Programming
1

Hello,

We have a serial port starting at port address 120. It does not seem to appear in the dev directory, but is there a way to get it to appear there?
Would it be an advantage to me to be able to open/read-write/close it as a QNX device or should I just go at it as 8 consecutive I/O ports and manipulate it that way?

Thanks

Bill
Cincinnati, OH USA

2

Sure, take a look at the options for the serial driver - you can explicitly tell it the io port and irq and it “should” work. Assuming of course that the serial hardware is based on a 8250 style uart.

Rick…