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

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Message-ID: <2aa9fcbb-40f2-ab87-a3c7-10082f2995e2@codeaurora.org>
Date:   Fri, 30 Oct 2020 17:33:15 -0700
From:   Hemant Kumar <hemantk@...eaurora.org>
To:     Randy Dunlap <rdunlap@...radead.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

Hi Randy,

On 10/29/20 10:48 PM, Randy Dunlap wrote:
> 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.
good catch, will add in next patch set.
> 
>> +	  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.
> 
> 

Thanks,
Hemant
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