Click here to Skip to main content
15,880,392 members
Home / Discussions / Linux Programming
   

Linux Programming

 
AnswerRe: Please help me understanding Bluetooth "socket"usage ... Pin
Gerry Schmitz3-Apr-23 6:10
mveGerry Schmitz3-Apr-23 6:10 
AnswerRe: Please help me understanding Bluetooth "socket"usage ... Pin
jschell3-Apr-23 6:47
jschell3-Apr-23 6:47 
GeneralMessage Closed Pin
3-Apr-23 14:08
Member 149687713-Apr-23 14:08 
GeneralRe: Please help me understanding Bluetooth "socket"usage ... Pin
Richard MacCutchan3-Apr-23 21:49
mveRichard MacCutchan3-Apr-23 21:49 
GeneralRe: Please help me understanding Bluetooth "socket"usage ... Pin
jschell4-Apr-23 5:54
jschell4-Apr-23 5:54 
GeneralMessage Closed Pin
4-Apr-23 8:03
Member 149687714-Apr-23 8:03 
GeneralRe: Please help me understanding Bluetooth "socket"usage ... Pin
Richard MacCutchan4-Apr-23 22:26
mveRichard MacCutchan4-Apr-23 22:26 
GeneralRe: Please help me understanding Bluetooth "socket"usage ... Pin
trønderen5-Apr-23 2:58
trønderen5-Apr-23 2:58 
Richard MacCutchan wrote:
. Also, Bluetooth does not replace RS232, it is a network protocol that uses the ISO/OSI model.
Any protocol that makes a distinction between higher and lower levels can be said to 'use the ISO/OSI model'. Or so it seems. I never saw any protocol with at least some higher/lower distinction (even morse can be said to have a 'higher' layer that is the di and dahs, and a 'lower' layer that is the generating of the carrier wave of the appropriate frequency.

I came into Bluetooth from an OSI angle, and started searching for service definitions according to OSI principles, protocol definitions according to OSI principles, and most important, a separation of these, according to OSI principles.

I started searching for layer independence, so that the same service interface (at each level) could be implemented by alternate lower layer protocols (and lower service interfaces). Nothing like that exists.

I started searching for protocol events and service interface events suitable for building a state machine in agreement with the standard OSI state machines. You'll never find that. The Bluetooth designers have even blurred the event concept: An event is certainly not atomic, but may include several packet exchanges.

Protocol-wise, Bluetooth is one big crow's nest. To quote Ted Nelson: Everything is deeply intertwingled. BT is a world of its own. Sure can be split into levels, just like any other protocol, but using the term 'layers' for these levels doesn't make it OSI. BT service and protocol definitions have no relationship at all to 'true' OSI service/protocol layers.
GeneralRe: Please help me understanding Bluetooth "socket"usage ... Pin
Richard MacCutchan5-Apr-23 3:24
mveRichard MacCutchan5-Apr-23 3:24 
QuestionShrinking root partiton Pin
megaadam24-Jan-23 0:27
professionalmegaadam24-Jan-23 0:27 
AnswerRe: Shrinking root partiton Pin
k505424-Jan-23 5:53
mvek505424-Jan-23 5:53 
GeneralRe: Shrinking root partiton Pin
megaadam24-Jan-23 12:25
professionalmegaadam24-Jan-23 12:25 
AnswerRe: Shrinking root partiton Pin
megaadam26-Jan-23 2:14
professionalmegaadam26-Jan-23 2:14 
AnswerRe: Shrinking root partiton Pin
jschell24-Jan-23 10:31
jschell24-Jan-23 10:31 
AnswerRe: Shrinking root partiton Pin
Jeremy Falcon13-Feb-23 12:56
professionalJeremy Falcon13-Feb-23 12:56 
QuestionMessage Closed Pin
29-Dec-22 8:51
Member 1496877129-Dec-22 8:51 
AnswerRe: How to add CAP_NET_ADMIN=eip permanently ? Pin
Eddy Vluggen20-Jan-23 7:24
professionalEddy Vluggen20-Jan-23 7:24 
AnswerRe: How to add CAP_NET_ADMIN=eip permanently ? Pin
jschell22-Jan-23 9:11
jschell22-Jan-23 9:11 
QuestionMessage Closed Pin
25-Oct-22 17:20
Member 1496877125-Oct-22 17:20 
AnswerRe: How to backup Linux OS? Pin
Richard MacCutchan25-Oct-22 22:22
mveRichard MacCutchan25-Oct-22 22:22 
GeneralMessage Closed Pin
26-Oct-22 5:54
Member 1496877126-Oct-22 5:54 
GeneralRe: How to backup Linux OS? Pin
Richard MacCutchan26-Oct-22 6:19
mveRichard MacCutchan26-Oct-22 6:19 
GeneralMessage Closed Pin
27-Oct-22 4:20
Member 1496877127-Oct-22 4:20 
GeneralRe: How to backup Linux OS? Pin
Richard MacCutchan27-Oct-22 4:40
mveRichard MacCutchan27-Oct-22 4:40 
AnswerRe: How to backup Linux OS? Pin
Jeremy Falcon2-Nov-22 13:57
professionalJeremy Falcon2-Nov-22 13:57 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.