diff libftmini/eeprom_wr.c @ 18:fce3d4baa2b4

libftmini: implement EEPROM write
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 07 Sep 2023 22:43:53 +0000
parents libftmini/eeprom_rd.c@67ecb394b24f
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libftmini/eeprom_wr.c	Thu Sep 07 22:43:53 2023 +0000
@@ -0,0 +1,24 @@
+/* elementary FTDI EEPROM write function */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <usb.h>
+#include "ftdi_defs.h"
+#include "ftdi_tune.h"
+#include "eeprom_func.h"
+
+void ftmini_write_eeprom_loc(usb_dev_handle *usbh, u_short addr, u_short val)
+{
+	int rc;
+
+	rc = usb_control_msg(usbh, FTDI_DEVICE_OUT_REQTYPE,
+			     SIO_WRITE_EEPROM_REQUEST, val, addr, NULL, 0,
+			     USB_WRITE_TIMEOUT);
+	if (rc != 0) {
+		fprintf(stderr,
+			"EEPROM write error: usb_control_msg() returned %d\n",
+			rc);
+		exit(1);
+	}
+}