Hi, 
I am writing a programm using serial profile. But it makes me crzay.
When I am using serial port program (client and server) after I am setting 
using "rfcomm command" ,i.e, listen and connect, it is ok.
But, When I try to merge with my program The Peer doesnot gets Data even though the connection is opened successfully and 
client sent data successfully.
My program is like this.
                                                           open("/dev/rfcomm0") 
     test "config1" -----fork--------------------------^----*----- read( nothing or less than sent!!!) 
                           |                           | signal (to let parent know I can reciev
                           +----     exec ( rfcomm listen) .... 
                                                      | 
                          +------- exec (rfcomm connect) 
                          |                            | signal (to let parent know it can send something) 
     test "config2" -----fork ----                     v ----*------* write( 100 bytes)
                                                          open("/dev/rfcomm4")


 IS THIS Because I am using two USB dongle in the same Desktop linux????
 I think it is not, becuase I tested one dongle with one pc also, and same result.
 Is it bug or something new thing I don't understand??????
 Please check the attachment file for me 

 The reason I do this, we want relaying data (application level scatter net service!!!)
 It is reuired for us but scatter net doesnot supported in my dongle and even bluez!!

 thanks!!!!!
 
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Ahn, Heejune,   Assistant Professor, PhD
Dept. CIE of Seoul National University of Technology
mobile: +82-1-3065-5418
office  : +82-2-970-6543
www  :  cie.snut.ac.kr/ahn
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