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player_device_req Struct Reference [player] #include <player.h> List of all members. Detailed Description Configuration request: Get device access. This is the most important request! Before interacting with a device, the client must request appropriate access. The access codes, which are used in both the request and response, are given above. Read access means that the server will start sending data from the specified device. For instance, if read access is obtained for the sonar device Player will start sending sonar data to the client. Write access means that the client has permission to control the actuators of the device. There is no locking mechanism so different clients can have concurrent write access to the same actuators. All access is both of the above and finally close means that there is no longer any access to the device. Device request messages can be sent at any time, providing on the fly reconfiguration for clients that need different devices depending on the task at hand. Of course, not all of the access codes are applicable to all devices; for instance it does not make sense to write to the sonars. However, a request for such access will not generate an error; rather, it will be granted, but any commands actually sent to that device will be ignored. In response to such a device request, the server will send a reply indicating the actual access that was granted for the device. The granted access may be different from the requested access; in particular, if there was some error in initializing the device the granted access will be error, and the client should not try to read from or write to the device. Public Attributes uint16_t  subtype uint16_t  code uint16_t  index uint8_t  access Member Data Documentation uint16_t player_device_req::subtype   Subtype; must be PLAYER_PLAYER_DEV_REQ uint16_t player_device_req::code   The interface for the device uint16_t player_device_req::index   The index for the device uint8_t player_device_req::access   The requested access The documentation for this struct was generated from the following file: player.h