579b659f6c
Load the module right before each attempt to use its features, and let the module subsystem handle unloading.
112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/* $NetBSD: usb_verbose.c,v 1.2 2010/06/06 18:58:26 pgoyette Exp $ */
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/* $FreeBSD: src/sys/dev/usb/usb_subr.c,v 1.18 1999/11/17 22:33:47 n_hibma Exp $ */
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/*
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* Copyright (c) 1998, 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net) at
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* Carlstedt Research & Technology.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: usb_verbose.c,v 1.2 2010/06/06 18:58:26 pgoyette Exp $");
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#include <sys/param.h>
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#include <sys/module.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdevs.h>
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#include <dev/usb/usb_verbose.h>
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/*
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* Descriptions of known vendors and devices ("products").
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*/
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struct usb_vendor {
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usb_vendor_id_t vendor;
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const char *vendorname;
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};
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struct usb_product {
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usb_vendor_id_t vendor;
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usb_product_id_t product;
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const char *productname;
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};
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#include <dev/usb/usbdevs_data.h>
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void get_usb_vendor_real(char *, usb_vendor_id_t);
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void get_usb_product_real(char *, usb_vendor_id_t, usb_product_id_t);
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MODULE(MODULE_CLASS_MISC, usbverbose, NULL);
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static int
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usbverbose_modcmd(modcmd_t cmd, void *arg)
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{
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static void (*saved_usb_vendor)(char *, usb_vendor_id_t);
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static void (*saved_usb_product)(char *, usb_vendor_id_t,
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usb_product_id_t);
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switch (cmd) {
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case MODULE_CMD_INIT:
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saved_usb_vendor = get_usb_vendor;
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saved_usb_product = get_usb_product;
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get_usb_vendor = get_usb_vendor_real;
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get_usb_product = get_usb_product_real;
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return 0;
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case MODULE_CMD_FINI:
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get_usb_vendor = saved_usb_vendor;
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get_usb_product = saved_usb_product;
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usb_verbose_loaded = 0;
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return 0;
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default:
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return ENOTTY;
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}
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}
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void get_usb_vendor_real(char *v, usb_vendor_id_t v_id)
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{
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int n;
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/* There is no need for strlcpy below. */
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for (n = 0; n < usb_nvendors; n++)
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if (usb_vendors[n].vendor == v_id) {
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strcpy(v, usb_vendors[n].vendorname);
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break;
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}
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}
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void get_usb_product_real(char *p, usb_vendor_id_t v_id, usb_product_id_t p_id)
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{
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int n;
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/* There is no need for strlcpy below. */
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for (n = 0; n < usb_nproducts; n++)
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if (usb_products[n].vendor == v_id &&
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usb_products[n].product == p_id) {
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strcpy(p, usb_products[n].productname);
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break;
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}
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}
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