linux-kernel - Re: [PATCH v11 4/4] bus: mhi: Add userspace client interface driver

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Message-ID: <88077bd6-be17-d88a-2959-9ea249614019@infradead.org>
Date:   Thu, 29 Oct 2020 22:48:29 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Hemant Kumar <hemantk@...eaurora.org>,
        manivannan.sadhasivam@...aro.org, gregkh@...uxfoundation.org
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        jhugo@...eaurora.org, bbhatt@...eaurora.org,
        loic.poulain@...aro.org, netdev@...r.kernel.org
Subject: Re: [PATCH v11 4/4] bus: mhi: Add userspace client interface driver

On 10/29/20 7:45 PM, Hemant Kumar wrote:
> diff --git a/drivers/bus/mhi/Kconfig b/drivers/bus/mhi/Kconfig
> index e841c10..476cc55 100644
> --- a/drivers/bus/mhi/Kconfig
> +++ b/drivers/bus/mhi/Kconfig
> @@ -20,3 +20,16 @@ config MHI_BUS_DEBUG
>  	  Enable debugfs support for use with the MHI transport. Allows
>  	  reading and/or modifying some values within the MHI controller
>  	  for debug and test purposes.
> +
> +config MHI_UCI
> +	tristate "MHI UCI"
> +	depends on MHI_BUS
> +	help
> +	  MHI based Userspace Client Interface (UCI) driver is used for

	  MHI-based

> +	  transferring raw data between host and device using standard file
> +	  operations from userspace. Open, read, write, and close operations
> +	  are supported by this driver. Please check mhi_uci_match_table for

also poll according to the documentation.

> +	  all supported channels that are exposed to userspace.
> +
> +	  To compile this driver as a module, choose M here: the module will be
> +	  called mhi_uci.


-- 
~Randy