# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1555875590 0
# Node ID 4d77c191c034e4c04ec97f58c65ec1908d12e157
# Parent  899ba273c30aa2468bf3fa1b308a8b94b1ebfd91
fteeprom-erase program written, compiles

diff -r 899ba273c30a -r 4d77c191c034 .hgignore
--- a/.hgignore	Sun Apr 21 19:34:05 2019 +0000
+++ b/.hgignore	Sun Apr 21 19:39:50 2019 +0000
@@ -8,6 +8,7 @@
 
 ^fteeprom/ftee-gen2232c$
 ^fteeprom/ftee-gen232r$
+^fteeprom/fteeprom-erase$
 ^fteeprom/fteeprom-prog$
 ^fteeprom/fteeprom-read$
 
diff -r 899ba273c30a -r 4d77c191c034 fteeprom/Makefile
--- a/fteeprom/Makefile	Sun Apr 21 19:34:05 2019 +0000
+++ b/fteeprom/Makefile	Sun Apr 21 19:39:50 2019 +0000
@@ -1,6 +1,6 @@
 CC=	gcc
 CFLAGS=	-O2
-PROGS=	ftee-gen2232c ftee-gen232r fteeprom-prog fteeprom-read
+PROGS=	ftee-gen2232c ftee-gen232r fteeprom-erase fteeprom-prog fteeprom-read
 INSTBIN=/opt/freecalypso/bin
 
 all:	${PROGS}
@@ -11,6 +11,9 @@
 ftee-gen232r:	ftee-gen232r.c
 	${CC} ${CFLAGS} -o $@ $@.c
 
+fteeprom-erase:	fteeprom-erase.c
+	${CC} ${CFLAGS} -o $@ $@.c -lftdi
+
 fteeprom-prog:	fteeprom-prog.c
 	${CC} ${CFLAGS} -o $@ $@.c -lftdi
 
diff -r 899ba273c30a -r 4d77c191c034 fteeprom/fteeprom-erase.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fteeprom/fteeprom-erase.c	Sun Apr 21 19:39:50 2019 +0000
@@ -0,0 +1,27 @@
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <ftdi.h>
+
+main(argc, argv)
+	char **argv;
+{
+	struct ftdi_context ftdi;
+
+	if (argc != 2) {
+		fprintf(stderr, "usage: %s device-selector\n");
+		exit(1);
+	}
+	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 (ftdi_erase_eeprom(&ftdi) < 0) {
+		fprintf(stderr, "EEPROM write error: %s\n", ftdi.error_str);
+		exit(1);
+	}
+	ftdi_usb_close(&ftdi);
+	exit(0);
+}