Am Montag, 16. Januar 2012, 13:29:19 schrieb Hans Verkuil:
> +/* check if the device is present and register with v4l and usb if it is */
> +static int usb_keene_probe(struct usb_interface *intf,
> + const struct usb_device_id *id)
> +{
> + struct keene_device *radio;
> + struct v4l2_ctrl_handler *hdl;
> + int retval = 0;
> +
> + radio = kzalloc(sizeof(struct keene_device), GFP_KERNEL);
> +
> + if (!radio) {
> + dev_err(&intf->dev, "kmalloc for keene_device failed\n");
> + retval = -ENOMEM;
> + goto err;
> + }
Oh, I forgot. You have no guarantee the hid driver is already loaded.
This driver needs to also gracefully handle being called for a HID
device.
Regards
Oliver
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