libsigrok/hardware/fx2lafw/command.c

40 lines
1.2 KiB
C

/*
* This file is part of the sigrok project.
*
* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libusb.h>
#include "command.h"
#include "sigrok.h"
#include "sigrok-internal.h"
int command_start_acquisition(libusb_device_handle *devhdl)
{
const int res = libusb_control_transfer(devhdl,
LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_ENDPOINT_OUT, CMD_START, 0x0000,
0x0000, NULL, 0, 100);
if (res < 0) {
sr_err("fx2lafw: Unable to send start command: %d",
res);
return SR_ERR;
}
return SR_OK;
}