RE: Request new serial name support for ubxtool and pygpsclient

[Kuo, Danny]

Hi team,

Thanks for comments, Intel did few debug already,
1. with "-p" flag on gpsd cli the gpsd can access to the device /dev/gnss*. But 
the "-p" flag is not necessary to old driver on /dev/ttyGNSS*
2. with "-p" on gpsd, the ubxtool can work
3. some APIs like stty, gpsctl, gpsmon shows ioctl error, this is not happen on 
old driver /dev/ttyGNSS*

So, my quest is:
Is this relate to the serial name /dev/gnss* not in gpsd code or it is relate 
to the write access to the device /dev/gnss*

Sorry that I am new to gpsd and appreciate your help.
Danny

-----Original Message-----
From: Greg Troxel <gdt@lexort.com> 
Sent: Friday, February 24, 2023 7:44 AM
To: Kuo, Danny <danny.kuo@intel.com>
Cc: Frank Nicholas <frank@nicholasfamilycentral.com>; gpsd-dev@nongnu.org
Subject: Re: Request new serial name support for ubxtool and pygpsclient

"Kuo, Danny" <danny.kuo@intel.com> writes:

> Sorry the image not pass correctly, I resend the file status with text 
> format,

They arrived.  It was just that my MUA does not display them as I choose to 
read messages in plain text.  Thanks for accomodating how I do things, and also 
any members of the list with visual impairments.

> New driver/serial name:
> [root@NGSNEXHPN06 ~]# ls -l /dev/gnss*
> crw-rw-rw- 1 root root 238, 0 Feb 24 07:00 /dev/gnss0
> [root@NGSNEXHPN06 ~]#
> [root@NGSNEXHPN06 ~]# file /dev/gnss0
> /dev/gnss0: character special (238/0)
>
> Original driver/serial name:
> [root@NGSNEXHPN06 ~]# ls -l /dev/ttyGNSS*
> crw-rw---- 1 root dialout 510, 0 Feb 24 07:21 /dev/ttyGNSS_5e00
> [root@NGSNEXHPN06 ~]#
> [root@NGSNEXHPN06 ~]# file /dev/ttyGNSS_5e00
> /dev/ttyGNSS_5e00: character special (510/0)

As Gary said, you need to find out what drivers do those, and to see if they 
work, separately from gpsd.  Perhaps kermit, or some other terminal program.
Or you can run gpsd with high debug levels, after getting used to it with a 
normal USB-attached receiver.