Nick: patrickg
E-mail: patrick@georgi-clan.de
Board: Dediprog SF100 "old style" (2 LEDs, Firmware version 2.x)
Contents: 
Index: dediprog.c
===================================================================
--- dediprog.c	(Revision 1672)
+++ dediprog.c	(Arbeitskopie)
@@ -186,6 +186,11 @@
 {
 	int ret;
 
+	if (dediprog_firmwareversion < FIRMWARE_VERSION(5,0,0)) {
+		msg_perr("Don't change SPI speed setting, firmware is too old!\n");
+		return 0;
+	}
+
 	msg_pdbg("SPI speed is %sHz\n", spispeeds[spispeed_idx].name);
 
 	ret = usb_control_msg(dediprog_handle, 0x42, 0x61, spispeeds[spispeed_idx].speed, 0xff,