From e75919bc9e1cb1b5f8f69b5a5aabed9b3a1a53d9 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Sun, 1 May 2011 15:42:32 -0700 Subject: usrp2: added the concept of device locking to usrp2/nseries devices Each iface instance can lock itself to a particular device. When the device is locked, it cannot be discovered through find. Locking works by having a lock thread periodically update a register in the firmware that says when the device was last locked. The find routine can determine if a device is locked by checking the difference between the current time and this register. --- host/lib/usrp/usrp2/mboard_impl.cpp | 3 +++ 1 file changed, 3 insertions(+) (limited to 'host/lib/usrp/usrp2/mboard_impl.cpp') diff --git a/host/lib/usrp/usrp2/mboard_impl.cpp b/host/lib/usrp/usrp2/mboard_impl.cpp index ae098dba6..7705037dd 100644 --- a/host/lib/usrp/usrp2/mboard_impl.cpp +++ b/host/lib/usrp/usrp2/mboard_impl.cpp @@ -80,6 +80,9 @@ usrp2_mboard_impl::usrp2_mboard_impl( ) % int(USRP2_FPGA_COMPAT_NUM) % fpga_compat_num)); } + //lock the device/motherboard to this process + _iface->lock_device(true); + //construct transports for dsp and async errors std::cout << "Making transport for DSP0..." << std::endl; device.dsp_xports.push_back(udp_zero_copy::make( -- cgit v1.2.3