Jtagkey: Fixed order of ftdi initialization.

[usb-driver] / jtagkey.c

diff --git a/jtagkey.c b/jtagkey.c
index a3cb8eb9a2235559ae3a3034ac82fc59c069d8a8..04bd0cd7291f886e2370f9562dfc727af02ac415 100644 (file)
--- a/jtagkey.c
+++ b/jtagkey.c
@@ -32,7 +32,7 @@ static int jtagkey_latency(int latency) {
        return ret;
 }
 
-static int jtagkey_init(unsigned short vid, unsigned short pid) {
+static int jtagkey_init(unsigned short vid, unsigned short pid, unsigned short iface) {
        int ret = 0;
        unsigned char c;
 
@@ -41,6 +41,11 @@ static int jtagkey_init(unsigned short vid, unsigned short pid) {
                return ret;
        }
        
+       if ((ret = ftdi_set_interface(&ftdic, iface)) != 0) {
+               fprintf(stderr, "unable to set interface: %d (%s)\n", ret, ftdi_get_error_string(&ftdic));
+               return ret;
+       }
+
        if ((ret = ftdi_usb_open(&ftdic, vid, pid)) != 0) {
                fprintf(stderr, "unable to open ftdi device: %d (%s)\n", ret, ftdi_get_error_string(&ftdic));
                return ret;
@@ -51,11 +56,6 @@ static int jtagkey_init(unsigned short vid, unsigned short pid) {
                return ret;
        }
 
-       if ((ret = ftdi_set_interface(&ftdic, INTERFACE_A)) != 0) {
-               fprintf(stderr, "unable to set interface: %d (%s)\n", ret, ftdi_get_error_string(&ftdic));
-               return ret;
-       }
-
        if ((ret = ftdi_write_data_set_chunksize(&ftdic, USBBUFSIZE))  != 0) {
                fprintf(stderr, "unable to set write chunksize: %d (%s)\n", ret, ftdi_get_error_string(&ftdic));
                return ret;
@@ -93,7 +93,7 @@ static int jtagkey_init(unsigned short vid, unsigned short pid) {
 int jtagkey_open(int num) {
        int ret;
 
-       ret = jtagkey_init(config_usb_vid(num), config_usb_pid(num));
+       ret = jtagkey_init(config_usb_vid(num), config_usb_pid(num), config_usb_iface(num));
 
        if (ret >= 0)
                ret = 0xff;