From 81b818b42156d3a6816f6a57072b992b0072c78a Mon Sep 17 00:00:00 2001
From: augustss <augustss@NetBSD.org>
Date: Thu, 27 Dec 2001 11:24:42 +0000
Subject: [PATCH] Add usbd_get_protocol().

---
 sys/dev/usb/usbdi_util.c | 23 +++++++++++++++++++++--
 sys/dev/usb/usbdi_util.h |  3 ++-
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/sys/dev/usb/usbdi_util.c b/sys/dev/usb/usbdi_util.c
index d245c8be2b36..9cff0d73ec3b 100644
--- a/sys/dev/usb/usbdi_util.c
+++ b/sys/dev/usb/usbdi_util.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: usbdi_util.c,v 1.38 2001/12/18 14:50:01 augustss Exp $	*/
+/*	$NetBSD: usbdi_util.c,v 1.39 2001/12/27 11:24:42 augustss Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/usbdi_util.c,v 1.14 1999/11/17 22:33:50 n_hibma Exp $	*/
 
 /*
@@ -39,7 +39,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: usbdi_util.c,v 1.38 2001/12/18 14:50:01 augustss Exp $");
+__KERNEL_RCSID(0, "$NetBSD: usbdi_util.c,v 1.39 2001/12/27 11:24:42 augustss Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -222,6 +222,25 @@ usbd_set_port_feature(usbd_device_handle dev, int port, int sel)
 	return (usbd_do_request(dev, &req, 0));
 }
 
+usbd_status
+usbd_get_protocol(usbd_interface_handle iface, u_int8_t *report)
+{
+	usb_interface_descriptor_t *id = usbd_get_interface_descriptor(iface);
+	usbd_device_handle dev;
+	usb_device_request_t req;
+
+	DPRINTFN(4, ("usbd_get_protocol: iface=%p, endpt=%d\n",
+		     iface, id->bInterfaceNumber));
+	if (id == NULL)
+		return (USBD_IOERROR);
+	usbd_interface2device_handle(iface, &dev);
+	req.bmRequestType = UT_READ_CLASS_INTERFACE;
+	req.bRequest = UR_GET_PROTOCOL;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, id->bInterfaceNumber);
+	USETW(req.wLength, 1);
+	return (usbd_do_request(dev, &req, report));
+}
 
 usbd_status
 usbd_set_protocol(usbd_interface_handle iface, int report)
diff --git a/sys/dev/usb/usbdi_util.h b/sys/dev/usb/usbdi_util.h
index 79f0e131988e..23054153f326 100644
--- a/sys/dev/usb/usbdi_util.h
+++ b/sys/dev/usb/usbdi_util.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: usbdi_util.h,v 1.25 2001/12/18 14:50:01 augustss Exp $	*/
+/*	$NetBSD: usbdi_util.h,v 1.26 2001/12/27 11:24:42 augustss Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/usbdi_util.h,v 1.9 1999/11/17 22:33:50 n_hibma Exp $	*/
 
 /*
@@ -54,6 +54,7 @@ usbd_status	usbd_set_port_feature(usbd_device_handle dev, int, int);
 usbd_status	usbd_clear_port_feature(usbd_device_handle, int, int);
 usbd_status	usbd_get_device_status(usbd_device_handle,usb_status_t*);
 usbd_status	usbd_get_hub_status(usbd_device_handle, usb_hub_status_t *);
+usbd_status	usbd_get_protocol(usbd_interface_handle dev, u_int8_t *report);
 usbd_status	usbd_set_protocol(usbd_interface_handle dev, int report);
 usbd_status	usbd_get_report_descriptor(usbd_device_handle dev, int ifcno,
 					   int size, void *d);