Re: [linux-usb-devel] [PATCH 01/02] Sierra Wireless - Add TRU-Install (c) Support

From: Oliver Neukum
Date: Wed Jul 11 2007 - 18:37:46 EST


Am Donnerstag, 12. Juli 2007 schrieb Kevin Lloyd:
> From: Kevin Lloyd <linux@xxxxxxxxxxxxxxxxxx>
>
> 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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