Linux, BlueZ, Initiating an hid BlueTooth Connection -

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use-case

  • ubuntu machine simulating keyboard
  • ubuntu machine ( virtual keyboard ) imitates connection remote device controlled

question

in normal scenario, hid desc reported through sdp, , thus, when device connects keyboard knows hid desc used, in use-case, virtual keyboard ( ubuntu machine ) initiate connection, , thus, it's not triggered using sdp, having said, how should send device hidreport descriptor used? possible, at-all, connect keyboard device in manner? can push hid report desc device ( controlled ) ?

implementation

  1. pair device ubuntu machine ( done manually )
  2. initiate l2cap connection on psms 0x11 & 0x13
  3. handshake

all working far, point when expect report hid descriptor device, how should done ?

as far understand it, hid host reads service descriptor once. afterwards, can initiate connection must conform have told host via sdp.

i have not come across way push information hid host later.

if need change something, must clear host's memory of device ("uninstall device" in windows, example) , reconnect (host initiating connection), reading new information updated sdp records.

if don't need change hid descriptors, believe don't need have sdpd running after initial connection. ever.


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