--- /root/files/fbsd/current/src/usr.sbin/spi/spi.c	2024-02-01 03:03:50.862992000 +0200
+++ spi.c	2025-12-13 20:04:26.728878000 +0200
@@ -40,6 +40,7 @@
 #include <string.h>
 #include <string.h>
 #include <unistd.h>
+#include <time.h>
 
 #define	DEFAULT_DEVICE_NAME	"/dev/spigen0.0"
 
@@ -146,6 +147,8 @@
 	      "        -A uses ASCII for input/output as 2-digit hex values\n"
 	      "        -b Override output format as binary (only valid with '-A')\n"
 	      "        -v verbose output\n"
+	      "        -S constantly stream from stdin to bus\n"
+	      "        -t when streaming, print time after each operation\n"
 	      "        -h prints this message\n"
 	      "\n"
 	      "NOTE:  setting the mode and/or speed is 'sticky'.  Subsequent transactions\n"
@@ -158,11 +161,13 @@
 main(int argc, char *argv[], char *envp[] __unused)
 {
 	struct spi_options opt;
-	int err, ch, hdev, finfo, fdir;
+	int err, ch, hdev, finfo, stream, ts, fdir;
 	char *pstr;
 	char dev_name[PATH_MAX * 2 + 5];
 
 	finfo = 0;
+	stream = 0;
+	ts = 0;
 	fdir = DIR_NONE;
 
 	hdev = -1;
@@ -180,7 +185,7 @@
 	opt.ncmd = 0;
 	opt.pcmd = NULL;
 
-	while (!err && (ch = getopt(argc, argv, "f:d:m:s:c:C:AbLvih")) != -1) {
+	while (!err && (ch = getopt(argc, argv, "f:d:m:s:c:C:AbLviSth")) != -1) {
 		switch (ch) {
 		case 'd':
 			if (optarg[0] == 'r') {
@@ -275,6 +280,14 @@
 			finfo = 1;
 			break;
 
+		case 'S':
+			stream = 1;
+			break;
+
+		case 't':
+			ts = 1;
+			break;
+
 		default:
 			err = 1;
 			/* FALLTHROUGH */
@@ -358,14 +371,31 @@
 
 	/* do data transfer */
 
-	if (fdir == DIR_READ) {
-		err = perform_read(hdev, &opt);
+	if (stream) {
+		while (1) {
+			if (fdir == DIR_READ) {
+				err = perform_read(hdev, &opt);
+			}
+			else if (fdir == DIR_WRITE) {
+				err = perform_write(hdev, &opt);
+			}
+			else if (fdir == DIR_READWRITE) {
+				err = perform_readwrite(hdev, &opt);
+			}
+			if (ts)
+				fprintf(stdout, "%u\n", (unsigned)time(NULL));
+		}
 	}
-	else if (fdir == DIR_WRITE) {
-		err = perform_write(hdev, &opt);
-	}
-	else if (fdir == DIR_READWRITE) {
-		err = perform_readwrite(hdev, &opt);
+	else {
+		if (fdir == DIR_READ) {
+			err = perform_read(hdev, &opt);
+		}
+		else if (fdir == DIR_WRITE) {
+			err = perform_write(hdev, &opt);
+		}
+		else if (fdir == DIR_READWRITE) {
+			err = perform_readwrite(hdev, &opt);
+		}
 	}
 
 the_end: