最終更新:2022-08-15 (月) 07:03:07 (52d)  

LMP/バージョン
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  • LMP supports requests for the version of the LM protocol.
    • The LMP_VERSION_REQ? and LMP_VERSION_RES? PDUs contain three parameters: Version, Company_Identifier and Subversion.
  • Version specifies the version of the Bluetooth LMP specification that the device supports.
  • All companies that create a unique implementation of the LM shall have their own Company_Identifier.
  • The same company is also responsible for the administration and maintenance of the Subversion.
  • It is recommended that each company has a unique Subversion for each RF/BB/LM implementation.
  • For a given Version and Company_Identifier, the values of the Subversion shall increase each time a new implementation is released.
  • For both Company_Identifier and Subversion the value 0xFFFF means that no valid number applies.
  • There is no ability to negotiate the version of the LMP.
  • LMP version can be requested at anytime following a successful Baseband Paging procedure.

Note:

  • A given value for Version does not indicate that the device supports all the features in the corresponding version of the specification; the relevant feature bits (see Section 4.3.4) should be checked instead.

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