linux-kernel - Re: syscall in a module

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Message-ID: <20071220101532.GA31128@flint.arm.linux.org.uk>
Date:	Thu, 20 Dec 2007 10:15:33 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Pierre Savary <pierre.savary@...link.fr>
Cc:	linux-arm-kernel@...ts.arm.linux.org.uk,
	linux-kernel@...r.kernel.org
Subject: Re: syscall in a module

On Thu, Dec 20, 2007 at 10:26:08AM +0100, Pierre Savary wrote:
> In fact I have a part (/dev/mmcblk0p5) that I want share with USB gadget
> (g_file_storage). But if USB is not connect to a PC, I want that this part
> was mounted on my board. An I want unmount this part when the board is
> plugged on a PC.
> So I need to mount and unmount partition in this module.

Arrange for the USB subsystem to send a uevent, which can then be picked
up by userspace to issue the correct command to mount or unmount the
partition.
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