Add a small utility to set a USB device configuration from userland.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31794 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/bin/Jamfile

@@ -162,6 +162,7 @@ StdBinCommands
 # standard commands that need libbe.so, libdevice.so
 StdBinCommands
 	listusb.cpp
+	setusbconfig.cpp
 	: be libdevice.so : $(haiku-utils_rsrc) ;
 
 # standard commands that need libbluetooth.so, due the Bluetooth Kit

src/bin/setusbconfig.cpp

@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <string.h>
+
+#include <USBKit.h>
+
+
+int
+main(int argc, char *argv[])
+{
+	if (argc < 3) {
+		printf("usage: %s <device> <configuration index>\n", argv[0]);
+		return 1;
+	}
+
+	BUSBDevice device(argv[1]);
+	if (device.InitCheck() != B_OK) {
+		printf("failed to open device %s\n", argv[1]);
+		return 2;
+	}
+
+	uint32 index;
+	if (sscanf(argv[2], "%lu", &index) != 1) {
+		printf("could not parse configuration index\n");
+		return 3;
+	}
+
+	const BUSBConfiguration *config = device.ConfigurationAt(index);
+	if (config == NULL) {
+		printf("couldn't get configuration at %lu\n", index);
+		return 4;
+	}
+
+	status_t result = device.SetConfiguration(config);
+	if (result != B_OK) {
+		printf("failed to set configuration: %s\n", strerror(result));
+		return 5;
+	}
+
+	printf("configuration %lu set on device %s\n", index, argv[1]);
+	return 0;
+}