doc/Host-tools-overview: tiffs-mkfs description updated The first version of tiffs-mkfs did not include a journal file in the created FFS, expecting the firmware to create it on first boot. All historical firmwares prior to a recent FC fix (2020-05) contain a bug in that code path, thus images made with the first version of tiffs-mkfs were only acceptable to very recent FC firmwares. tiffs-mkfs has now been extended to include an empty journal in the created FFS, thus the restriction of working with recent fw only has been lifted.

/*
 * Handling of TMFFS2 responses from ETM
 */

#include <sys/types.h>
#include <stdio.h>

extern u_char rvi_msg[];
extern int rvi_msg_len;

void
handle_ffs2_response()
{
	if (rvi_msg[3])
		print_etm_pkt_raw("FFS2 error");
	else if (rvi_msg_len == 5)
		async_msg_output("FFS2 command successful");
	else
		print_etm_pkt_raw("FFS2 response");
}