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transceiver, uhd: exit informatively if no devices are found 

Perform a UHD device search before constructing the object,
and inform the user if no device is found.

No device found is the most common reason for the transceiver
to fail with the dreaded error "assuming TRX is dead".

Signed-off-by: Thomas Tsou <ttsou@vt.edu>

git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@2699 19bc5d8c-e614-43d4-8b26-e1612bc8e597
This commit is contained in:
kurtis.heimerl 2011-11-28 06:26:04 +00:00
parent 523ae5a69e
commit 4403d4ff7c
1 changed files with 11 additions and 4 deletions
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15
Transceiver52M/UHDDevice.cpp
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@ -425,11 +425,18 @@ bool uhd_device::open()
// Register msg handler
uhd::msg::register_handler(&uhd_msg_handler);
// Allow all UHD devices
LOG(INFO) << "Creating transceiver with first found UHD device";
uhd::device_addr_t dev_addr("");
// Find UHD devices
uhd::device_addr_t args("");
uhd::device_addrs_t dev_addrs = uhd::device::find(args);
if (dev_addrs.size() == 0) {
LOG(ALERT) << "No UHD devices found";
return false;
}
// Use the first found device
LOG(INFO) << "Using discovered UHD device " << dev_addrs[0].to_string();
try {
usrp_dev = uhd::usrp::single_usrp::make(dev_addr);
usrp_dev = uhd::usrp::single_usrp::make(dev_addrs[0]);
} catch(...) {
LOG(ALERT) << "UHD make failed";
return false;