Miod Vallat wrote:
quoted text
>> Hi all,
>>
>> I've been working on getting gpsd working on one of my old Sun IPXes but 
>> I've run into a problem with ldattach needing the /dev/cuaa device.  The 
>> serial port /dev/ttya is working with gpsd directly but ldattach requires 
>> /dev/cuaa.  However, according to the system logs, ldattach issues the 
>> error (ldattach is run as root):
>>
>> ldattach: can't open /dev/cuaa: Device not configured
> 
> Oops. Big oops. cua support for zstty was removed about 7.5 years ago,
> it was intended to be brought back, but I had completely forgotten about
> this.
> 
> Does the following diff help? It should apply cleanly to 4.6 too (apply
> in sys/arch/sparc/dev).

The patch did enable the /dev/cua* devices.  I was able to use minicom 
to connect to /dev/cuaa and see the data streaming back from my GPS 
receiver.

However, ldattach still doesn't seem to know what to do with the device. 
  I started up ldattach as:

ldattach -d -p -t dcd nmea /dev/cuaa

But it just sits there and does nothing.