From: Dan Williams <dcbw@redhat.com>
To: Jeffrey Hugo <jhugo@codeaurora.org>,
Jakub Kicinski <kuba@kernel.org>,
Hemant Kumar <hemantk@codeaurora.org>
Cc: manivannan.sadhasivam@linaro.org, gregkh@linuxfoundation.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
bbhatt@codeaurora.org, loic.poulain@linaro.org,
netdev@vger.kernel.org
Subject: Re: [PATCH v9 3/4] docs: Add documentation for userspace client interface
Date: Mon, 26 Oct 2020 08:46:13 -0500 [thread overview]
Message-ID: <4e4dc63d0a0b5a820f7a70e30e29746fd6735a96.camel@redhat.com> (raw)
In-Reply-To: <e92a5a5b-ac62-a6d8-b6b4-b65587e64255@codeaurora.org>
On Mon, 2020-10-26 at 07:38 -0600, Jeffrey Hugo wrote:
> On 10/25/2020 3:46 PM, Jakub Kicinski wrote:
> > On Fri, 23 Oct 2020 16:17:54 -0700 Hemant Kumar wrote:
> > > +UCI driver enables userspace clients to communicate to external
> > > MHI devices
> > > +like modem and WLAN. UCI driver probe creates standard character
> > > device file
> > > +nodes for userspace clients to perform open, read, write, poll
> > > and release file
> > > +operations.
> >
> > What's the user space that talks to this?
> >
>
> Multiple.
>
> Each channel has a different purpose. There it is expected that a
> different userspace application would be using it.
>
> Hemant implemented the loopback channel, which is a simple channel
> that
> just sends you back anything you send it. Typically this is consumed
> by
> a test application.
>
> Diag is a typical channel to be consumed by userspace. This is
> consumed
> by various applications that talk to the remote device for
> diagnostic
> information (logs and such).
QMI too?
Dan
> Sahara is another common channel that is usually used for the
> multistage
> firmware loading process.
>
next prev parent reply other threads:[~2020-10-26 13:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-23 23:17 [PATCH v9 0/4] userspace MHI client interface driver Hemant Kumar
2020-10-23 23:17 ` [PATCH v9 1/4] bus: mhi: core: Add helper API to return number of free TREs Hemant Kumar
2020-10-23 23:17 ` [PATCH v9 2/4] bus: mhi: core: Move MHI_MAX_MTU to external header file Hemant Kumar
2020-10-23 23:17 ` [PATCH v9 3/4] docs: Add documentation for userspace client interface Hemant Kumar
2020-10-25 21:46 ` Jakub Kicinski
2020-10-26 13:38 ` Jeffrey Hugo
2020-10-26 13:46 ` Dan Williams [this message]
2020-10-26 13:56 ` Jeffrey Hugo
2020-10-26 22:36 ` Hemant Kumar
2020-10-26 22:56 ` Jakub Kicinski
2020-10-26 23:22 ` Hemant Kumar
2020-10-23 23:17 ` [PATCH v9 4/4] bus: mhi: Add userspace client interface driver Hemant Kumar
[not found] ` <CAMZdPi_MQ0SqK7s6h_1_9yEDD0vuAOpCTjSHTd1PBsGjvXukiA@mail.gmail.com>
2020-10-27 1:18 ` Hemant Kumar
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