woking on linux kernel 5 yay

modules/fjpalmvein/C/fjpalmvein-main/93-unicon-palmvene.rules

@@ -1,9 +1 @@
-ACTION!="add",\
+SUBSYSTEM=="usbmisc", KERNEL=="fjveincam*", ACTION=="add", MODE="0666", SYMLINK+="usb/fjveincam0"
- DRIVERS=="fjveincam",\
- MODE="0666",
- SUBSYSTEM=="usb",\
- ATTRS{idVendor}=="04c5",\
- ATTRS{idProduct}=="1526",\
- SYMLINK+="usb/fjveincam%n",\
- RUN+="/bin/bash -c 'date >> /tmp/fjpv'",\
- RUN+="/bin/bash -c 'echo $kernel _ $devpath _ $number id=$id MM=$major:$minor $name $sys >> /tmp/fjpv'"

modules/fjpalmvein/C/fjpalmvein-main/ctl.sh

@@ -3,6 +3,7 @@ make clean
 make
 make install
 cp fjveincam.ko /usr/lib/modules/`uname -r`/kernel/drivers/usb/misc/
-cp 93-unicon-palmvene.rules  /usr/lib/udev/rules.d/
+#cp 93-unicon-palmvene.rules  /usr/lib/udev/rules.d/
+cp 93-unicon-palmvene.rules   /etc/udev/rules.d/
 insmod fjveincam.ko
 depmod

modules/fjpalmvein/C/fjpalmvein-main/drivertest.c

@@ -14,9 +14,16 @@ int main(int argc, char ** argv) {
     int status = 0;
     int fd = 0;
     char fname[] = "/dev/usb/fjveincam\0\0";
+    //char fname[] = "/dev/bus/usb//004/01\0\0";
     char * p1 = fname;
     char * p2 = 0;
 
+    if (argc<2){
+        printf("Error. Syntax is %s device# (eg 0,1,2)\n", argv[0]);
+        return 1;
+    }
+
+
     memset(&info,1,sizeof(struct fjveincam_info));
     p2 = argv[1];
     *(p1+strlen(p1))=*p2;
@@ -46,7 +53,8 @@ int main(int argc, char ** argv) {
 
     if (status < 0) {
         perror("ioctl");
-        printf("Failed to call function in kernel module with IOCTL  code %lu\n",(unsigned long)USB_FJVEINCAMV30_IOCTL_CHECK,status);
+        printf("Failed to call function in kernel module with IOCTL code %lu status %d\n",
+           (unsigned long)USB_FJVEINCAMV30_IOCTL_CHECK,status);
         close(fd);
         return -1;
     }