Question: how to retrieve drvdata from open() ?

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To: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx
Subject: Question: how to retrieve drvdata from open() ?
From: Christophe LEROY <christophe.leroy@xxxxxx>
Date: Mon, 27 Nov 2017 16:18:42 +0100
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0

When registering a device node with device_create(), it is possible topass a drvdata pointer.

How can I retrieve that drvdata pointer from the open() fops ? I've notbeen able to find any exemple.


Thanks
Christophe

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