Changeset 56a07e0 in mainline

Timestamp:

2012-12-22T20:34:09Z (11 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b591cab

Parents:

38b4a25

Message:

vuhid: Add help and few useful options.

File:

• uspace/app/vuhid/main.c (modified) (6 diffs)

uspace/app/vuhid/main.c

@@ -40 +40 @@
 #include <errno.h>
 #include <str_error.h>
+#include <getopt.h>
 
 #include <usb/usb.h>
@@ -51 +52 @@
 #include "ifaces.h"
 #include "stdreq.h"
+
+#define DEFAULT_CONTROLLER   "/virt/usbhc/ctl"
 
 static usbvirt_control_request_handler_t endpoint_zero_handlers[] = {
@@ -151 +154 @@
 
 
+static struct option long_options[] = {
+        {"help", optional_argument, NULL, 'h'},
+        {"controller", required_argument, NULL, 'c' },
+        {"list", no_argument, NULL, 'l' },
+        {0, 0, NULL, 0}
+};
+static const char *short_options = "hc:l";
+
+static void print_help(const char* name, const char* module)
+{
+        if (module == NULL) {
+                /* Default help */
+                printf("Usage: %s [options] device.\n", name);
+                printf("\t-h, --help [device]\n");
+                printf("\t\to With no argument print this help and exit.\n");
+                printf("\t\to With argument print device specific help and exit.\n");
+                printf("\t-l, --list \n\t\tPrint list of available devices.\n");
+                printf("\t-c, --controller \n\t\t"
+                    "Use provided virtual hc instead of default (%s)\n",
+                    DEFAULT_CONTROLLER);
+                return;
+        }
+        printf("HELP for module %s\n", module);
+}
+
+static void print_list(void)
+{
+        printf("Available devices:\n");
+        for (vuhid_interface_t **i = available_hid_interfaces; *i != NULL; ++i)
+        {
+                printf("\t`%s'\t%s\n", (*i)->id, (*i)->name);
+        }
+
+}
+
+static const char *controller = DEFAULT_CONTROLLER;
+
 int main(int argc, char * argv[])
 {
-        int rc;
+
+        if (argc == 1) {
+                print_help(*argv, NULL);
+                return 0;
+        }
+
+        int opt = 0;
+        while ((opt = getopt_long(argc, argv, short_options, long_options, NULL)) > 0) {
+                switch (opt)
+                {
+                case 'h':
+                        print_help(*argv, optarg);
+                        return 0;
+                case 'c':
+                        controller = optarg;
+                        break;
+                case 'l':
+                        print_list();
+                        return 0;
+                case -1:
+                default:
+                        break;
+                }
+        }
+
 
         log_init("vuhid");
@@ -161 +225 @@
 
         /* Determine which interfaces to initialize. */
-        int i;
-        for (i = 1; i < argc; i++) {
-                rc = add_interface_by_id(available_hid_interfaces, argv[i],
+        for (int i = optind; i < argc; i++) {
+                int rc = add_interface_by_id(available_hid_interfaces, argv[i],
                     &hid_dev);
                 if (rc != EOK) {
@@ -173 +236 @@
         }
 
-        for (i = 0; i < (int) hid_dev.descriptors->configuration->extra_count; i++) {
+        for (int i = 0; i < (int) hid_dev.descriptors->configuration->extra_count; i++) {
                 usb_log_debug("Found extra descriptor: %s.\n",
                     usb_debug_str_buffer(
@@ -181 +244 @@
         }
 
-        rc = usbvirt_device_plug(&hid_dev, "/virt/usbhc/ctl");
+        const int rc = usbvirt_device_plug(&hid_dev, controller);
         if (rc != EOK) {
-                printf("Unable to start communication with VHCD: %s.\n",
-                    str_error(rc));
+                printf("Unable to start communication with VHCD `%s': %s.\n",
+                    controller, str_error(rc));
                 return rc;
         }
         
-        printf("Connected to VHCD...\n");
+        printf("Connected to VHCD `%s'...\n", controller);
 
         wait_for_interfaces_death(&hid_dev);