linux-kernel - Re: slimbus: Inquiry on Additional SLIMbus Drivers and User Space Test Utilities

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Message-ID: <CAHhAz+iUdm2Ko6hz7jgObiL=pgZiwYFnyoCmk7wftONbKEnrEQ@mail.gmail.com>
Date: Mon, 17 Feb 2025 16:32:43 +0530
From: Muni Sekhar <munisekharrms@...il.com>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc: linux-sound@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: slimbus: Inquiry on Additional SLIMbus Drivers and User Space
 Test Utilities

On Mon, Feb 17, 2025 at 3:58 PM Srinivas Kandagatla
<srinivas.kandagatla@...aro.org> wrote:
>
>
>
> On 12/02/2025 15:30, Muni Sekhar wrote:
> > Hi all,
> >
> > I need to work on the SLIMbus interface on a Linux platform. As part
> > of my study, I see that in the Linux kernel, the SLIMbus interface is
> > managed by the drivers/slimbus directory.
> >
> > I would like to inquire if there are any additional device drivers
> > required to comprehensively test the SLIMbus interface on a Linux
> > platform beyond those listed in the drivers/slimbus directory.
>
> SLIMbus is used as audio transport interface on some of the Qualcomm SoCs.
> Qualcomm Codecs (WCD9335, WCD934x and some of the BT Codecs) use SLIMBus
> as primary interface.
>
> w.r.t to testing, its audio end-to-end usecase.
Thank you for the information regarding the SLIMbus interface and its
use in audio end-to-end use cases on Qualcomm SoCs.

I have a couple of follow-up questions:

1. If audio is the end-to-end use case, are ALSA Utilities and the
ALSA Library involved in this process?
2. If so, what other ALSA drivers are used in conjunction with the
drivers listed in the drivers/slimbus directory to comprehensively
test the SLIMbus interface on a Linux platform?

Thank you for your assistance.
>
> >
> > Additionally, I am seeking information on existing user space test
> > utilities that can be used to test the SLIMbus interface on Linux. Any
> > references or recommendations for such utilities would be greatly
> > appreciated.
> Am afraid am not aware of any tools that are public.
>
> --srini
> >
> > Thank you for your time and assistance. I look forward to your response.
> >



-- 
Thanks,
Sekhar