# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1694068789 0
# Node ID 80e521d6609cd7b8e51a6617ab1a71ea1e03d7a4
# Parent  fe4231326fb2c3ac1a12d99a61529d9ff21bd6b8
libuwrap: implement USB device open and close

diff -r fe4231326fb2 -r 80e521d6609c libuwrap/Makefile
--- a/libuwrap/Makefile	Thu Sep 07 04:58:16 2023 +0000
+++ b/libuwrap/Makefile	Thu Sep 07 06:39:49 2023 +0000
@@ -1,6 +1,7 @@
 CC=	gcc
 CFLAGS=	-O2
-OBJS=	find_busdev.o find_desc_str.o find_matchspec.o prelim_init.o
+OBJS=	find_busdev.o find_desc_str.o find_matchspec.o open_close.o \
+	prelim_init.o
 LIB=	libuwrap.a
 
 all:	${LIB}
diff -r fe4231326fb2 -r 80e521d6609c libuwrap/open_close.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libuwrap/open_close.c	Thu Sep 07 06:39:49 2023 +0000
@@ -0,0 +1,33 @@
+/*
+ * Here we implement functions for opening and closing the libusb device
+ * we have located.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <usb.h>
+#include "open_close.h"
+
+usb_dev_handle *usbwrap_open_dev(struct usb_device *dev, int detach)
+{
+	usb_dev_handle *usbh;
+
+	usbh = usb_open(dev);
+	if (!usbh) {
+		fprintf(stderr, "error: usb_open() failed\n");
+		exit(1);
+	}
+	if (detach)
+		usb_detach_kernel_driver_np(usbh, 0);
+	if (usb_claim_interface(usbh, 0) != 0) {
+		fprintf(stderr, "error: usb_claim_interface() failed\n");
+		exit(1);
+	}
+	return usbh;
+}
+
+void usbwrap_close_dev(usb_dev_handle *usbh)
+{
+	usb_release_interface(usbh, 0);
+	usb_close(usbh);
+}
diff -r fe4231326fb2 -r 80e521d6609c libuwrap/open_close.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libuwrap/open_close.h	Thu Sep 07 06:39:49 2023 +0000
@@ -0,0 +1,2 @@
+extern usb_dev_handle *usbwrap_open_dev(struct usb_device *dev, int detach);
+extern void usbwrap_close_dev(usb_dev_handle *usbh);