10 More Discussions You Might Find Interesting
1. HP-UX
Hello friends, I am trying to communicate with a programmer memory from Unix (HP-UX) via serial port.
Well, I have some code ready stty parameters to achieve communicating the device with the computer, but I have my doubts. I would like to know if you have some code fragment where you use the... (5 Replies)
Discussion started by: Monttanna
5 Replies
2. Programming
edit: never mind; mods please delete. I finally got so frustrated I figured it couldn't be the code and it must be the device on the other end. After pulling it out of its cradle, I realized it was a different model number than the one I was using before, and wasn't accepting my... (1 Reply)
Discussion started by: DreamWarrior
1 Replies
3. AIX
I configured the serial modem in my P6-550 AIX 5.3 box
But i dont have telephone line.
when I run the command
# cu -l /dev/tty1
the output is as follows
does it mean that my modem is responding to the command?
can i say my serial port is working and communicating fine?
Connected
... (3 Replies)
Discussion started by: pchangba
3 Replies
4. Solaris
Hi community,
I've currently working on SUN Server V490 and I'm connecting with a Serial port (I DON'T HAVE ANY IP CONNECTIVITY)...I need to redirect the graphic interface of Oracle with the dbca command; I know a way with an IP Connectivity ( use a X-Server and then setenv DISPLAY... (7 Replies)
Discussion started by: Sunb3
7 Replies
5. OS X (Apple)
Hi again,
I spoke with Keyspan and they assured me the USB to Serial device was working if I could use the Screen tool.
I asked why I was unable to redirect stdin/stdout to and from the /dev/tty. device and was told there was no reason I shouldn't be able to do so.
I have tried:
... (1 Reply)
Discussion started by: cpfogarty
1 Replies
6. Programming
hello,
I am gettin problem while sending and recieving data through seial port...
when I am sending Data then the reciever end is not able to recieve that data .....
Reciever end is running in infinite loop just polling after some time to check that there is data on the port and then again... (9 Replies)
Discussion started by: arunchaudhary19
9 Replies
7. UNIX for Dummies Questions & Answers
Hi,
I need to connect from an hp-ux box to a device that only have a serial port.
When I need to do that from solaris to that device I used put a null modem and type tip hardwire, but I'm new with hp-ux and I don't have the tip command.
Any idea?
Thanks. (2 Replies)
Discussion started by: piltrafa
2 Replies
8. UNIX for Dummies Questions & Answers
This isn't really a unix question, or even a programming question, but I hope you guys can help. I want to create a program to control the electricity on a model railway.
I have created the program to that it sends characters over the serial cable, but now I need to do the switch that will... (1 Reply)
Discussion started by: KrazyGuyPaul
1 Replies
9. UNIX for Advanced & Expert Users
Hi,
I am working on serial communication on Unix. Can anyone guide me through it. The steps required for RS 232 communication and can i do serial communication even if i dont have super user previledges.
Thankx,
Vicky (1 Reply)
Discussion started by: Vicky
1 Replies
10. UNIX for Dummies Questions & Answers
We're running SCO Unix Openserver 5.05 and I'm having trouble with serial communication between the com2 serial port and a handheld device. Downloading data from Unix to the handheld works perfectly, but the other way around creates a major problem. I don't know whether it's a buffer overflow or... (1 Reply)
Discussion started by: Aretha
1 Replies
RFCOMM_SPPD(1) BSD General Commands Manual RFCOMM_SPPD(1)
NAME
rfcomm_sppd -- RFCOMM Serial Port Profile daemon
SYNOPSIS
rfcomm_sppd [-bhtS] -a address -c channel
DESCRIPTION
The rfcomm_sppd utility is a Serial Port Profile daemon. It can operate in two modes: client and server.
In client mode, rfcomm_sppd opens RFCOMM connection to the specified address server and channel. Once connection is established, the
rfcomm_sppd utility provides access to the server's remote serial port via stdin/stdout or via pts(4) interface if -t option was specified.
If the -S option is specified, rfcomm_sppd will operate in server mode and act as RFCOMM server, listening on ANY address and advertising a
virtual serial port via the sdpd(8) daemon. If -t options was specified, the server side of the virtual serial port is attached to a pseudo-
terminal. Otherwise the virtual serial port is attached to the stdin/stdout. rfcomm_sppd should be run as root in order to communicate with
sdpd(8) in this case.
The rfcomm_sppd utility opens both master and slave pseudo terminals. This is done to ensure that RFCOMM connection stays open until
rfcomm_sppd is terminated. The data received from the master pseudo terminal are sent over the RFCOMM connection. The data received from
the RFCOMM connection are written into master pseudo terminal. The application in its turn opens the slave pseudo terminal and operates on
it just like it would operate over the standard serial port.
The options are as follows:
-a address
In client mode, this required option specifies the address of the remote RFCOMM server. If this option is specified in server mode,
rfcomm_sppd will only accept connections from the Bluetooth device with address address. The address can be specified as BD_ADDR or
name. If name was specified then rfcomm_sppd utility will attempt to resolve the name via bt_gethostbyname(3).
-b Detach from the controlling terminal, i.e., run in background.
-c channel
In both client and server mode, this option specifies the RFCOMM channel to connect to or listen on. In server mode, the channel
should be a number between 1 and 30. If not specified, rfcomm_sppd will try to bind to ``wildcard'' RFCOMM channel number. The
actual RFCOMM channel will be obtained via getsockname(2) call and will be used to register Serial Port service with sdpd(8). In
client mode, the channel could either be a number between 1 and 30 or a service name. Supported service names are: DUN (for DialUp
Networking service), FAX (for Fax service), LAN (for LAN Access Using PPP service) and SP (for Serial Port service). If channel was
not specified then rfcomm_sppd utility will try to obtain RFCOMM channel for Serial Port service via Service Discovery Protocol from
the server.
-h Display usage message and exit.
-S Server mode; see DESCRIPTION.
-t Use slave pseudo tty. If not set stdin/stdout will be used. This option is required if -b option was specified.
FILES
/dev/pts/[num] slave pseudo terminals
EXIT STATUS
The rfcomm_sppd utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
rfcomm_sppd -a 00:01:02:03:04:05 -c 1 -t
Will start the rfcomm_sppd utility and open RFCOMM connection to the server at 00:01:02:03:04:05 and channel 1. Once the connection has been
established, a pts(4) can be used to talk to the remote serial port on the server. rfcomm_sppd prints the name of the pts(4) to use on std-
out.
SEE ALSO
bluetooth(3), ng_btsocket(4), pts(4), rfcomm_pppd(8), sdpd(8)
AUTHORS
Maksim Yevmenkin <m_evmenkin@yahoo.com>
BUGS
Please report if found.
BSD
April 21, 2008 BSD