linux-kernel - Re: [linux-usb-devel] [PATCH 01/02] Sierra Wireless

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Message-Id: <200707120037.27672.oliver@neukum.org>
Date:	Thu, 12 Jul 2007 00:37:27 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	linux-usb-devel@...ts.sourceforge.net
Cc:	Kevin Lloyd <klloyd@...hmc.edu>, gregkh@...e.de,
	linux@...rrawireless.com, torvalds@...l.org,
	linux-kernel@...r.kernel.org
Subject: Re: [linux-usb-devel] [PATCH 01/02] Sierra Wireless - Add TRU-Install (c) Support

Am Donnerstag, 12. Juli 2007 schrieb Kevin Lloyd:
> From: Kevin Lloyd <linux@...rrawireless.com>
> 
> This patch adds compatibility with Sierra Wireless' new TRU-Install feature. Future devices that use this feature will not work unless this patch has been applied.

Is this some type of CD-ROM simulation to provide drivers?

> +int sierra_probe(struct usb_interface *iface, const struct usb_device_id *id)
> +{
> +	int result;	
> +	struct usb_device *udev;
> +
> +	udev = usb_get_dev(interface_to_usbdev(iface));
> +
> +	/* Check if in installer mode */
> +	if (id->driver_info == DEVICE_INSTALLER){
> +		dev_dbg("FOUND DEVICE(SW)\n");
> +		result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem);
> +		return 0;

This is not a good idea in the long run. If you don't return an error here,
disconnect() will be called for your driver and will have to deal with
a semiinitialized device.

	Regards
		Oliver
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