diff options
| -rw-r--r-- | host/include/uhd/usrp/subdev_spec.hpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/host/include/uhd/usrp/subdev_spec.hpp b/host/include/uhd/usrp/subdev_spec.hpp index 5de3bb3b8..b189724c9 100644 --- a/host/include/uhd/usrp/subdev_spec.hpp +++ b/host/include/uhd/usrp/subdev_spec.hpp @@ -26,10 +26,10 @@ namespace uhd{ namespace usrp{ /*! - * A subdevice specification (daughterboard, subdevice) name pairing. + * A subdevice specification (daughterboard slot, subdevice) name pairing. */ struct UHD_API subdev_spec_pair_t : boost::equality_comparable<subdev_spec_pair_t>{ - //! The daughterboard name + //! The daughterboard slot name std::string db_name; //! The subdevice name @@ -50,7 +50,7 @@ namespace uhd{ namespace usrp{ UHD_API bool operator==(const subdev_spec_pair_t &, const subdev_spec_pair_t &); /*! - * A list of (daughterboard name, subdevice name) pairs: + * A list of (daughterboard slot name, subdevice name) pairs: * * A subdevice specification represents a list of subdevices on a motherboard. * The subdevices specified may span across multiple daughterboards; @@ -62,6 +62,11 @@ namespace uhd{ namespace usrp{ * The markup-string is a whitespace separated list of dboard:subdev pairs. * The first pair represents the subdevice for channel zero, * the second pair represents the subdevice for channel one, and so on. + * + * Special handling for empty conditions: + * - An empty subdevice specification means: select the first subdevice found in the configuration + * - An empty daughterboard name means: select the only daughterboard slot or error if multiple exist + * - An empty subdevice name means: select the only subdevice on that board or error if multiple exist */ class UHD_API subdev_spec_t : public std::vector<subdev_spec_pair_t>{ public: |