Hi Jui-Hao, > as the title said, I am writing a simple server-client socket > program for SCO > connection. While client is sending the SCO packet to server, it > attaches a > sequence number to it. Then I want server to estimate the packet loss. > [Client program is as the following] > for (i = 0; i < 48, i++) buf[i] = 0x7f; > while (1) { > *(uint32_t *)buf = htobl(seq); > *(uint32_t *)(buf+4) = htobs(48); > if (send(sockfd, buf, 48, 0) < 0) break; > seq++; > usleep(1) > } > > However, on the server side, the data is total different, and I am > not able to > get the sequence number (the hcidump -x also shows different data > content as I > expect. Also, it's weird that the content is repeated) > > Is this data encoded? or is there anyway to know the packet loss > ratio of the > SCO connection? SCO are voice connections and they are CVSD encoded. It is not a reliable data transport. Use L2CAP or RFCOMM for that. Regards Marcel ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Bluez-devel mailing list Bluez-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/bluez-devel