send_vendor_command
send_vendor_command(udev, PLF_VNDR_FPGA_STATE_CMD, NULL, 0);
r = send_vendor_command(udev, PLF_VNDR_XL_FW_CMD, NULL, 0);
r = send_vendor_command(udev, PLF_VNDR_XL_FILE_CMD, buf,
r = send_vendor_command(udev, PLF_VNDR_XL_DATA_CMD, buf,
r = send_vendor_command(udev, PLF_VNDR_XL_EX_CMD, NULL, 0);
send_vendor_command(udev, PLF_VNDR_FPGA_SET_CMD, NULL, 0);