linux-kernel - Re: [RFC PATCH v2 3/3] gnss: Add driver for AI2 protocol

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Date: Tue, 13 Feb 2024 20:20:15 +0100
From: Andreas Kemnade <andreas@...nade.info>
To: Adam Ford <aford173@...il.com>
Cc: marcel@...tmann.org, johan.hedberg@...il.com, luiz.dentz@...il.com,
 johan@...nel.org, jirislaby@...nel.org, gregkh@...uxfoundation.org,
 linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org, Tony
 Lindgren <tony@...mide.com>, tomi.valkeinen@...asonboard.com,
 Péter Ujfalusi <peter.ujfalusi@...il.com>, robh@...nel.org,
 hns@...delico.com
Subject: Re: [RFC PATCH v2 3/3] gnss: Add driver for AI2 protocol

On Tue, 13 Feb 2024 07:57:10 -0600
Adam Ford <aford173@...il.com> wrote:

> On Sun, Jan 28, 2024 at 11:34 AM Andreas Kemnade <andreas@...nadeinfo> wrote:
> >
> > Add a driver for the Air Independent Interface protocol used by some TI
> > Wilink combo chips. Per default, send out just NMEA to userspace and turn
> > on/off things at open()/close() but keep the door open for any
> > sophisticated development regarding the AI2 protocol by having a kernel
> > parameter to turn it into raw mode resembling /dev/tigps provided by some
> > TI vendor kernels.
> >
> > Signed-off-by: Andreas Kemnade <andreas@...nade.info>  
> 
> I am still trying to find a GPS antenna for the Logic PD board I have,
> but it occurred to me that the kit that I have used may require
> special GPS firmware.  Are you using any special firmware in the radio
> in conjunction with these driver patches or are you using the standard
> bts files?
> 
Just
https://github.com/TI-ECS/bt-firmware/raw/master/TIInit_10.6.15.bts

I removed one command (by setting type to commment) regarding some clock
configuration.

Well, maybe you see NMEA without antenna, maybe you get an error message
because the module "feels" the absence of an antenna...

Regards,
Andreas