Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Feedback-ID: i56a14606:Fastmail
User-Agent: Cyrus-JMAP/3.7.0-alpha0-935-ge4ccd4c47b-fm-20220914.001-ge4ccd4c4
Mime-Version: 1.0
Message-Id: <51275e33-c791-4593-84d1-eedad27d7fd6@www.fastmail.com>
In-Reply-To: <20220917234918.8b94d2690b8533bd47cf64e0@samsung.com>
References: <20220917072356.2255620-1-jiho.chu@samsung.com>
 <CGME20220917072357epcas1p17b277154f0d020435417450fa0337906@epcas1p1.samsung.com>
 <20220917072356.2255620-2-jiho.chu@samsung.com>
 <e035ac54-35af-4e86-a74a-9a4c7f936a19@www.fastmail.com>
 <20220917234918.8b94d2690b8533bd47cf64e0@samsung.com>
Date:   Thu, 22 Sep 2022 15:56:51 +0200
From:   "Arnd Bergmann" <arnd@arndb.de>
To:     "Jiho Chu" <jiho.chu@samsung.com>
Cc:     "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
        ogabbay@kernel.org,
        "Krzysztof Kozlowski" <krzysztof.kozlowski@linaro.org>,
        "Mark Brown" <broonie@kernel.org>, linux-kernel@vger.kernel.org,
        yelini.jeong@samsung.com, myungjoo.ham@samsung.com
Subject: Re: [PATCH v2 01/13] trinity: Add base driver
Content-Type: text/plain
Precedence: bulk

On Sat, Sep 17, 2022, at 4:49 PM, Jiho Chu wrote:
> On Sat, 17 Sep 2022 09:41:13 +0200
> "Arnd Bergmann" <arnd@arndb.de> wrote:
>> 
>> If you have the need to manage multiple devices here, maybe use
>> a dynamic major number and have the chardev code allocate the
>> minor numbers, instead of using multiple misc devices and
>> doing that yourself.
>> 
>
> I'm little confusing. It means that managing own char devices is proper,
> not using misc device? But, it's still under misc dir.

There is no strict connection between miscdevices and drivers/misc.

The former is for drivers that tend to have only one instance
in a system, while the latter is for drivers that do not have
a separate subsystem.

     Arnd