08-19-2008
10 More Discussions You Might Find Interesting
1. Programming
I'm writing a journal_write() function and I want it to:
- be a possible drop in replacement for write()
- write entries to the journal ;-) Could be a regular file (journal.txt), a serial printer or a // printer.
- handle printer status if needed.
fstat() tells weather or not we're dealing with... (2 Replies)
Discussion started by: starless
2 Replies
2. Linux
I think my serial port(on board) is not working ......
because when I am running same code on two machines its working good....but when my system comes into picture ....it doesnt show any output comming from serial port..........
can anybody tell me how to configure my serial port.........or to... (16 Replies)
Discussion started by: arunchaudhary19
16 Replies
3. Solaris
I am working with solaris 9 sparc and I want to connect physical device in serial port but when I am connecting it,It is showing the error window saying--
So can any1 tell me the reason or is there any package I have to add to work with serial port??? (2 Replies)
Discussion started by: smartgupta
2 Replies
4. Programming
Hello!
Can someone advice me which method I will use if I want to communicate with device via RS232 serial port with this requirements:
1. Serial port is opened in non-canonical mode.
2. All the time I need to check is there something to read.
3. If I have to write something I need to write it... (6 Replies)
Discussion started by: jvrlic
6 Replies
5. Programming
I have a need to determine when a string has been completely sent via a serial port from a standard 'C' application. The code is as follows:
SerialPort_Send = open (pPortString, O_WRONLY | O_NOCTTY | O_NONBLOCK);
write (SerialPort_Send, pCommandString, strlen (pCommandString));
... (2 Replies)
Discussion started by: ExDes
2 Replies
6. Solaris
What is the serial port on the T5140 used for. (4 Replies)
Discussion started by: pgsanders
4 Replies
7. Shell Programming and Scripting
Hi,
I have a external board connected to my serial port. I need to execute "shutdown -r now" command when system boot up. When system boots up it requires a username ans password. Then I need to run my command. I can use rc script but that is rebooting system before it asks for username and... (0 Replies)
Discussion started by: charlie.arya
0 Replies
8. Solaris
Hi Everyone,
In my environment, I have few T5220. On the iLOM Management Card, I have both Network and Serial port are cabled, I don't have any issues while I try to connect using Network Management port, but when I try to connect the serial port for the same server which is actually connected... (3 Replies)
Discussion started by: bobby320
3 Replies
9. Programming
Hi guys
I'm trying to connect to CISCO router using termios. So I decided to have two threads one for reading data and the other one for writing data.
And here's my code :
int mainfd=0;
char ch = {NULL};
void *write(void *)
{
char temp;
while(1)
{
temp =... (3 Replies)
Discussion started by: turner
3 Replies
10. Solaris
Hello,
I have an unloaded T5140 machine and want to access the ILOM for the first time and subsequently the network port after that., and then load Solaris 10 the final January 2011 build.
The first part is what confuses me -the cabling.
I am coming from a Windows machine (w/appropriate... (5 Replies)
Discussion started by: joboy
5 Replies
SCC(4) BSD Kernel Interfaces Manual SCC(4)
NAME
scc -- Zilog 8530 Serial Communications Controller interface
SYNOPSIS
scc* at ioasic? offset ?
DESCRIPTION
The scc driver provides support for the Zilog 8530 Serial Communications Controller (SCC) via the IOASIC found on DECstation 5000 models in
the /100, /20, and /240 series (supported by NetBSD/pmax).
Each SCC device has two serial ports. The DECstation 5000 model 20 provides one SCC device. Other models provide two, but one port of each
device is dedicated to mouse and keyboard input, respectively.
Input and output for each line may set to one of following baud rates: 50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600,
19200, 38400, or 57600.
Speeds up to 230400 are supported by the chip and the motherboard, but speeds higher than 57600 do not work reliably without an external
clock signal.
FILES
/dev/ttya
/dev/ttyb
/dev/ttyc
/dev/ttyd
The mapping from units to serial-hardware outlets is idiosyncratic. The even ports are wired serial connectors and the odd-numbered ports
are reserved for mouse and keyboard.
On machines with one port like Personal DECstations, the single device is ttya.
On the 5000/1xx and 5000/2xx, the first serial port (default serial console) is ttyc and the second port is ttya.
SEE ALSO
intro(4), ioasic(4), ttys(5), MAKEDEV(8)
HISTORY
The scc driver first appeared in 4.4BSD.
The scc driver was also used for the IOASIC SCC found in DEC Alpha model 3000 TurboCHANNEL based systems; NetBSD/alpha has since been con-
verted to use the machine-independent zstty(4).
BUGS
The IOASIC provides internal DMA channels that can be programmed to transfer up to 4096 bytes of data into, or out, of an SCC without further
software intervention. This feature of the IOASIC is not yet supported.
The mapping from device-special files (major and minor number) to chip and port is arguably backwards. ULTRIX tries to hide the hardware
mapping, but NetBSD does not. Users wanting to use ULTRIX compatible tty names /dev/tty0 and /dev/tty1 for the scc comm-port lines should
make links or device-special files which match their hardware setup.
BSD
April 24, 2003 BSD