Function command_ctl_rd

libsigrok4DSL/hardware/DSL/command.c:47–78

}

SR_PRIV int command_ctl_rd(libusb_device_handle *devhdl, struct ctl_rd_cmd cmd)
{
    int ret;

    assert(devhdl);

    /* Send the control message. */
    ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
            LIBUSB_ENDPOINT_OUT, CMD_CTL_RD_PRE, 0x0000, 0x0000,
            (unsigned char *)&cmd, sizeof(struct ctl_header), 3000);
    if (ret < 0) {
        sr_err("Unable to send CMD_CTL_RD_PRE command(dest:%d/offset:%d/size:%d): %s.",
               cmd.header.dest, cmd.header.offset, cmd.header.size,
               libusb_error_name(ret));
        return SR_ERR;
    }

    g_usleep(10*1000);

    /* Send the control message. */
    ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
        LIBUSB_ENDPOINT_IN, CMD_CTL_RD, 0x0000, 0x0000,
        (unsigned char *)cmd.data, cmd.header.size, 3000);

    if (ret < 0) {
        sr_err("Unable to send CMD_CTL_RD command: %s.",
               libusb_error_name(ret));
        return SR_ERR;
    }

    return SR_OK;
}