diff options
| -rw-r--r-- | host/lib/usrp/b200/b200_impl.cpp | 8 | ||||
| -rw-r--r-- | host/lib/usrp/b200/b200_impl.hpp | 2 |
2 files changed, 10 insertions, 0 deletions
diff --git a/host/lib/usrp/b200/b200_impl.cpp b/host/lib/usrp/b200/b200_impl.cpp index e435afaad..6642ae0a7 100644 --- a/host/lib/usrp/b200/b200_impl.cpp +++ b/host/lib/usrp/b200/b200_impl.cpp @@ -533,6 +533,14 @@ b200_impl::b200_impl(const uhd::device_addr_t& device_addr, usb_device_handle::s << "Requested recv_frame_size of " << device_addr["recv_frame_size"] << " reduced to " << recv_frame_size << "."; } + // Check that recv_frame_size was set to a reasonable value. + if (recv_frame_size < B200_USB_DATA_MIN_RECV_FRAME_SIZE) { + UHD_LOGGER_WARNING("B200") + << "Requested recv_frame_size of " << recv_frame_size + << " is too small. It will be set to " + << B200_USB_DATA_MIN_RECV_FRAME_SIZE << "."; + recv_frame_size = B200_USB_DATA_MIN_RECV_FRAME_SIZE; + } data_xport_args["recv_frame_size"] = std::to_string(recv_frame_size); data_xport_args["num_recv_frames"] = device_addr.get("num_recv_frames", "16"); data_xport_args["send_frame_size"] = device_addr.get("send_frame_size", std::to_string(B200_USB_DATA_DEFAULT_FRAME_SIZE)); diff --git a/host/lib/usrp/b200/b200_impl.hpp b/host/lib/usrp/b200/b200_impl.hpp index 5b4a03694..2e7ab176f 100644 --- a/host/lib/usrp/b200/b200_impl.hpp +++ b/host/lib/usrp/b200/b200_impl.hpp @@ -82,6 +82,8 @@ static const unsigned char B200_USB_DATA_SEND_ENDPOINT = 2; // Default recv_frame_size. Must not be a multiple of 512. static const int B200_USB_DATA_DEFAULT_FRAME_SIZE = 8176; +// recv_frame_size values below this will be upped to this value +static const int B200_USB_DATA_MIN_RECV_FRAME_SIZE = 40; /* * VID/PID pairs for all B2xx products |