--- a/.hgignore	Sat Sep 09 07:39:48 2023 +0000
+++ b/.hgignore	Sat Sep 09 16:06:56 2023 +0000
@@ -9,4 +9,3 @@
 ^fteeprom/fteeprom-erase$
 ^fteeprom/fteeprom-prog$
 ^fteeprom/fteeprom-read$
-^fteeprom/test/fteeprom-prog-bad$

--- a/fteeprom/test/Makefile	Sat Sep 09 07:39:48 2023 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,11 +0,0 @@
-CC=	gcc
-CFLAGS=	-O2
-PROGS=	fteeprom-prog-bad
-
-all:	${PROGS}
-
-fteeprom-prog-bad:	fteeprom-prog-bad.c
-	${CC} ${CFLAGS} -o $@ $@.c -lftdi
-
-clean:
-	rm -f ${PROGS} *.o *errs *.out

--- a/fteeprom/test/fteeprom-prog-bad.c	Sat Sep 09 07:39:48 2023 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,123 +0,0 @@
-/*
- * This "bad" version of fteeprom-prog is being presented in order to show
- * what happens on FT232R chips when a certain magic sequence is omitted.
- */
-
-#include <sys/types.h>
-#include <ctype.h>
-#include <string.h>
-#include <strings.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <ftdi.h>
-
-unsigned eeprom_size;
-u_short eeprom[256];
-
-read_eeprom_common(inf, filename_for_errs)
-	FILE *inf;
-	char *filename_for_errs;
-{
-	char linebuf[1024], *cp;
-	int lineno, rc;
-	unsigned ptr = 0, input_off;
-
-	for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) {
-		for (cp = linebuf; isspace(*cp); cp++)
-			;
-		if (*cp == '\0' || *cp == '#')
-			continue;
-		if (ptr >= 256) {
-			fprintf(stderr,
-				"%s line %d: maximum EEPROM size exceeded\n",
-				filename_for_errs, lineno);
-			exit(1);
-		}
-		rc = sscanf(linebuf, "%x: %hx %hx %hx %hx %hx %hx %hx %hx",
-			    &input_off, eeprom + ptr, eeprom + ptr + 1,
-			    eeprom + ptr + 2, eeprom + ptr + 3,
-			    eeprom + ptr + 4, eeprom + ptr + 5,
-			    eeprom + ptr + 6, eeprom + ptr + 7);
-		if (rc != 9 || input_off != ptr * 2) {
-			fprintf(stderr, "%s line %d: invalid input\n",
-				filename_for_errs, lineno);
-			exit(1);
-		}
-		ptr += 8;
-	}
-	if (ptr != 64 && ptr != 128 && ptr != 256) {
-		fprintf(stderr, "%s: not an EEPROM image of recognized size\n",
-			filename_for_errs);
-		exit(1);
-	}
-	eeprom_size = ptr;
-}
-
-read_eeprom_from_file(filename)
-	char *filename;
-{
-	FILE *inf;
-
-	inf = fopen(filename, "r");
-	if (!inf) {
-		perror(filename);
-		exit(1);
-	}
-	read_eeprom_common(inf, filename);
-	fclose(inf);
-}
-
-read_eeprom_from_stdin()
-{
-	read_eeprom_common(stdin, "stdin");
-}
-
-main(argc, argv)
-	char **argv;
-{
-	struct ftdi_context ftdi;
-	u_short modem_status;
-	unsigned n;
-
-	if (argc < 2 || argc > 3) {
-		fprintf(stderr, "usage: %s device-selector [eeprom-image]\n",
-			argv[0]);
-		exit(1);
-	}
-	if (argv[2])
-		read_eeprom_from_file(argv[2]);
-	else
-		read_eeprom_from_stdin();
-	ftdi_init(&ftdi);
-	if (ftdi_usb_open_string(&ftdi, argv[1]) < 0) {
-		fprintf(stderr, "FTDI USB open failed: %s\n", ftdi.error_str);
-		exit(1);
-	}
-#if 0	/* FT232R magic sequence omitted! */
-	if (ftdi_usb_reset(&ftdi) < 0) {
-		fprintf(stderr, "ftdi_usb_reset() failed: %s\n",
-			ftdi.error_str);
-		exit(1);
-	}
-	if (ftdi_poll_modem_status(&ftdi, &modem_status) < 0) {
-		fprintf(stderr, "ftdi_poll_modem_status() failed: %s\n",
-			ftdi.error_str);
-		exit(1);
-	}
-	if (ftdi_set_latency_timer(&ftdi, 0x77) < 0) {
-		fprintf(stderr, "ftdi_set_latency_timer() failed: %s\n",
-			ftdi.error_str);
-		exit(1);
-	}
-#endif
-	for (n = 0; n < eeprom_size; n++) {
-		if (ftdi_write_eeprom_location(&ftdi, n, eeprom[n]) < 0) {
-			fprintf(stderr, "EEPROM write error: %s\n",
-				ftdi.error_str);
-			exit(1);
-		}
-	}
-	ftdi_usb_close(&ftdi);
-	exit(0);
-}