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diff --git a/host/docs/identification.rst b/host/docs/identification.rst new file mode 100644 index 000000000..49d36ec1a --- /dev/null +++ b/host/docs/identification.rst @@ -0,0 +1,97 @@ +======================================================================== +UHD - Device Identification Notes +======================================================================== + +.. contents:: Table of Contents + +------------------------------------------------------------------------ +Identifying USRPs +------------------------------------------------------------------------ +Every device has several ways of identifying it on the host system: + +* **Serial:** A globally unique identifier. +* **Address:** A unique identifier on a network. +* **Name:** An optional user-set identifier. + +The address is only applicable for network-based devices. +See the USRP2 application notes. + +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Device discovery via command line +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +A "find devices" utility application comes bundled with the UHD. +The find devices application will search for all devices on the host system and print the results. + +:: + + uhd_find_devices + +Device address arguments can be supplied to narrow the scope of the search. + +:: + + uhd_find_devices --args="type=usrp1" + + -- OR -- + + uhd_find_devices --args="serial=12345678" + +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Device discovery through the API +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The device::find() API call searches for devices and returns a list of discovered devices. + +:: + + uhd::device_addr_t hint; //an empty hint discovers all devices + uhd::device_addrs_t dev_addrs = uhd::device::find(hint); + +The hint argument can be populated to narrow the scope of the search. + +:: + + uhd::device_addr_t hint; + hint["type"] = "usrp1"; + uhd::device_addrs_t dev_addrs = uhd::device::find(hint); + + -- OR -- + + uhd::device_addr_t hint; + hint["serial"] = "12345678"; + uhd::device_addrs_t dev_addrs = uhd::device::find(hint); + +------------------------------------------------------------------------ +Naming a USRP +------------------------------------------------------------------------ +For convenience purposes, users may assign a custom name to their USRPs. +The USRP can then be identified via name, rather than a difficult to remember serial or address. + +A name has the following properties: + +* is composed of ASCII characters +* is between 0 and 20 characters +* is not required to be unique + +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Set a custom name +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +Run the following commands: +:: + + cd <prefix>/share/uhd/utils + ./usrp_burn_mb_eeprom --args=<optional device args> --key=name --val=lab1_xcvr + +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Discovery via name +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +The keyword "name" can be used to narrow the scope of the search. +Example with the find devices utility: +:: + + uhd_find_devices --args="name=lab1_xcvr" + + -- OR -- + + uhd_find_devices --args="type=usrp1, name=lab1_xcvr" |