From: michael <michael>
Date: Sun, 29 Apr 2007 17:51:28 +0000 (+0000)
Subject: only read pins when needed, now it's a bit faster than a parallel cable
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver/commitdiff_plain/a270f1e37a49ae072740de471bfe98658dea3b5e?ds=sidebyside;hp=397d1c368eb948ccabdd711bd20a92461bf60799

only read pins when needed, now it's a bit faster than a parallel cable
---

diff --git a/jtagkey.c b/jtagkey.c
index c12e235..bf1cded 100644
--- a/jtagkey.c
+++ b/jtagkey.c
@@ -209,7 +209,9 @@ int jtagkey_transfer(WD_TRANSFER *tr, int fd, unsigned int request, int ppbase,
 		DPRINTF("writing %d bytes\n", writepos-writebuf);
 		for (i=0; i<writepos-writebuf; i++) {
 			ftdi_write_data(&ftdic, writebuf+i, 1);
-			ftdi_read_pins(&ftdic, readbuf+i);
+
+			if (i > 0 && tr[i].cmdTrans == PP_WRITE && tr[i-1].cmdTrans == PP_READ)
+				ftdi_read_pins(&ftdic, readbuf+i);
 		}
 
 #ifdef DEBUG