1 files changed, 84 insertions, 0 deletions
diff --git a/examples/custom-class/commandline/set-led.c b/examples/custom-class/commandline/set-led.c
new file mode 100644
index 0000000..07ba094
--- /dev/null
+++ b/examples/custom-class/commandline/set-led.c
@@ -0,0 +1,84 @@
+/* Name: set-led.c
+ * Project: custom-class, a basic USB example
+ * Author: Christian Starkjohann
+ * Creation Date: 2008-04-10
+ * Tabsize: 4
+ * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
+ * License: GNU GPL v2 (see License.txt) or proprietary (CommercialLicense.txt)
+ * This Revision: $Id$
+ */
+
+/*
+General Description:
+This is the host-side driver for the custom-class example device. It searches
+the USB for the LEDControl device and sends the requests understood by this
+device.
+This program must be linked with libusb on Unix and libusb-win32 on Windows.
+See http://libusb.sourceforge.net/ or http://libusb-win32.sourceforge.net/
+respectively.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <usb.h>        /* this is libusb */
+#include "opendevice.h" /* common code moved to separate module */
+
+#include "../firmware/requests.h"   /* custom request numbers */
+#include "../firmware/usbconfig.h"  /* device's VID/PID and names */
+
+static void usage(char *name)
+{
+    fprintf(stderr, "usage:\n");
+    fprintf(stderr, "  %s on ....... turn on LED\n", name);
+    fprintf(stderr, "  %s off ...... turn off LED\n", name);
+    fprintf(stderr, "  %s status ... ask current status of LED\n", name);
+}
+
+int main(int argc, char **argv)
+{
+usb_dev_handle      *handle = NULL;
+const unsigned char rawVid[2] = {USB_CFG_VENDOR_ID}, rawPid[2] = {USB_CFG_DEVICE_ID};
+char                vendor[] = {USB_CFG_VENDOR_NAME, 0}, product[] = {USB_CFG_DEVICE_NAME, 0};
+char                buffer[1];
+int                 cnt, vid, pid, isOn;
+
+    usb_init();
+    if(argc < 2){   /* we need at least one argument */
+        usage(argv[0]);
+        exit(1);
+    }
+    /* compute VID/PID from usbconfig.h so that there is a central source of information */
+    vid = rawVid[1] * 256 + rawVid[0];
+    pid = rawPid[1] * 256 + rawPid[0];
+    /* The following function is in opendevice.c: */
+    if(usbOpenDevice(&handle, vid, vendor, pid, product, NULL, NULL, NULL) != 0){
+        fprintf(stderr, "Could not find USB device \"%s\" with vid=0x%x pid=0x%x\n", product, vid, pid);
+        exit(1);
+    }
+    /* Since we use only control endpoint 0, we don't need to choose a
+     * configuration and interface.
+     */
+    if(strcasecmp(argv[1], "status") == 0){
+        cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, CUSTOM_RQ_GET_STATUS, 0, 0, buffer, sizeof(buffer), 5000);
+        if(cnt < 1){
+            if(cnt < 0){
+                fprintf(stderr, "USB error: %s\n", usb_strerror());
+            }else{
+                fprintf(stderr, "only %d bytes received.\n", cnt);
+            }
+        }else{
+            printf("LED is %s\n", buffer[0] ? "on" : "off");
+        }
+    }else if((isOn = (strcasecmp(argv[1], "on") == 0)) || strcasecmp(argv[1], "off") == 0){
+        cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT, CUSTOM_RQ_SET_STATUS, isOn, 0, buffer, 0, 5000);
+        if(cnt < 0){
+            fprintf(stderr, "USB error: %s\n", usb_strerror());
+        }
+    }else{
+        usage(argv[0]);
+        exit(1);
+    }
+    usb_close(handle);
+    return 0;
+}