try first attempt at enumeration with serials

33180743 · Juan David González Cobas · 764768f1 · 33180743
Commit 33180743 authored Nov 05, 2021 by Juan David González Cobas
Hide whitespace changes
Inline Side-by-side

Showing with 68 additions and 0 deletions

usb-enum.c software/lib/usb-enum.c +68 -0

No files found.
--- a/software/lib/usb-enum.c
+++ b/software/lib/usb-enum.c
+#include <stdio.h>
+#include <string.h>
+#include <libudev.h>
+
+#define OAU_VENDOR_ID	"1556"	/* CERN USB Vendor ID */
+#define OAU_DEVICE_ID	"0443"	/* oau USB Device ID */
+
+#define ID_VENDOR_ID	OAU_VENDOR_ID
+#define ID_DEVICE_ID	OAU_DEVICE_ID
+
+static int oua_enumerate(char *vendor_id, char *device_id);
+
+int main(int argc, char *argv[])
+{
+	oua_enumerate(ID_VENDOR_ID, ID_DEVICE_ID);
+	return 0;
+}
+
+static int oua_enumerate(char *vendor_id, char *device_id)
+{
+    struct udev *udev = udev_new();
+    struct udev_enumerate *enumerate = udev_enumerate_new(udev);
+    struct udev_list_entry *devs, *ptr;
+    int found_ports = 0;
+
+    //udev_enumerate_add_match_subsystem(enumerate, "tty");
+    udev_enumerate_add_match_property(enumerate, "ID_VENDOR_ID", vendor_id);
+    udev_enumerate_add_match_property(enumerate, "ID_MODEL_ID", device_id);
+    udev_enumerate_scan_devices(enumerate);
+
+    devs = udev_enumerate_get_list_entry(enumerate);
+    udev_list_entry_foreach(ptr, devs) {
+        const char *path = udev_list_entry_get_name(ptr);
+        struct udev_device *dev = udev_device_new_from_syspath(udev, path);
+	const char *devnode = udev_device_get_devnode(dev);
+
+	const char *serial = udev_device_get_sysattr_value(dev, "serial");
+	printf("serial: %s, \n", serial);
+	goto notfound;
+
+	if (devnode != NULL) {
+		struct udev_list_entry *l, *links = udev_device_get_devlinks_list_entry(dev);
+		//int port;
+		udev_list_entry_foreach(l, links) {
+			const char *linkname = udev_list_entry_get_name(l);
+			int i, len = strlen(linkname);
+			const char *ports[]  = { "0-port0", "1-port0", "2-port0", "3-port0", };
+			int trim = strlen(ports[0]);
+
+			for (i = 0; i < 4; i++)
+				if (!strcmp(ports[i], &linkname[len-trim])) {
+					//ports_info[i].port = port = i;
+					//strcpy(ports_info[i].symlink, path);
+					//strcpy(ports_info[i].devnode, devnode);
+					goto found;
+				}
+			goto notfound;
+		}
+found:
+		found_ports++;
+	}
+notfound:
+	udev_device_unref(dev);
+    }
+    udev_enumerate_unref(enumerate);
+
+    return (found_ports == 4) ? 0 : -1;
+}