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ftdi: Report an error if no ftdi_vid_pid is specified 

By default the list of VID/PID is empty so if ftdi_vid_pid is not called
then no matches are attempted. The only message is at -d3:

	Command 'init' failed with error code -100"

Check for this condition explicitly to make life easier for people
configuring adapters.

Change-Id: If0f93370c9e9ddc9700aae7c346c1c6dd319152e
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-on: http://openocd.zylin.com/5440
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Leonard Crestez 2020-02-06 16:13:25 +02:00 committed by Antonio Borneo
parent 86cf8d9fb0
commit 38d205ecc5
1 changed files with 5 additions and 0 deletions
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5
src/jtag/drivers/ftdi.c
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@ -647,6 +647,11 @@ static int ftdi_initialize(void)
else
LOG_DEBUG("ftdi interface using shortest path jtag state transitions");
if (!ftdi_vid[0] && !ftdi_pid[0]) {
LOG_ERROR("Please specify ftdi_vid_pid");
return ERROR_JTAG_INIT_FAILED;
}
for (int i = 0; ftdi_vid[i] || ftdi_pid[i]; i++) {
mpsse_ctx = mpsse_open(&ftdi_vid[i], &ftdi_pid[i], ftdi_device_desc,
ftdi_serial, jtag_usb_get_location(), ftdi_channel);