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Operating Systems Solaris Serial port problem
# 1  
Old 10-16-2008
Serial port problem
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--

Quote:
Warning:The serial port "/dev/term/a" cannot be opened for use.
Please verify that it is entered correctly and that is not already in use.
So can any1 tell me the reason or is there any package I have to add to work with serial port???
# 2  
Old 10-16-2008
According to the Sun docs for asy - asynchronous serial port driver

Quote:
Once a /dev/cua/n line is opened, the corresponding tty line cannot be opened until the /dev/cua/n line is closed. A blocking open will wait until the /dev/cua/n line is closed (which will drop Data Terminal Ready, after which Carrier Detect will usually drop as well) and carrier is detected again. A non-blocking open will return an error. If the /dev/ttydn line has been opened successfully (usually only when carrier is recognized on the modem), the corresponding /dev/cua/n line cannot be opened. This allows a modem to be attached to /dev/term/[n] (renamed from /dev/tty[n]) and used for dial-in (by enabling the line for login in /etc/inittab) or dial-out (by tip(1) or uucp(1C)) as /dev/cua/n when no one is logged in on the line.
Hope this is helpful....
# 3  
Old 10-26-2008
Curious to know... whats the physical device you're connecting to the serial ..?
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