> New OpenSolaris user here, > > I'm trying to get NUT (Network UPS Tools) to talk to > my CyberPower 1500AVR UPS via a serial connection. > Problem is, I don't know which /dev file is serial > port COM1 (the serial connector on the back of my > motherboard). In Linux, it's often /dev/ttyS0. What > is it in OpenSolaris? > > I tried /dev/tty[a,b,c], /dev/ttyd[0,1,2], > /dev/term/[a,b,c] and /dev/cua[0,1,2] to no avail. Is > there a way to find out which /dev is serial and > which has a live connection? > > I know that OSOL detects it since in the desktop > there is a small icon that says it's running on > AC... > > Thanks
Looks to me like recent NUT does your UPS; it's listed at http://www.networkupstools.org/compat/stable.html and http://www.networkupstools.org/compat/dev.html Using port "a" as an example /dev/ttya is just an alias for /dev/term/a /dev/term/a and /dev/cua/a both refer to the same port. However, /dev/cua/a does not block waiting for control signals like carrier detect, and /dev/term/a does. Typically, /dev/cua/a is used with a modem for outgoing calls, or with tip for a direct connection, while /dev/term/a is used for incoming calls (it will block until a call is received). An exception might be if using a smart modem that reports status with a program like mgetty that talks a lot to the modem; it would probably need to use /dev/cua/a to get ring detect message and the like. I don't know if this applies to x86, but at least on older SPARC, the first port ("a" or COM1 in Windows-speak) may get diagnostic system messages during boot-up, and would be the console if a serial console was configured. Since it may get some messages even if serial console is _not_ configured, if there is more than one port available, it may be a better choice to leave it unused and use a second or subsequent port instead. The cable has to be right too; not sure whether you need a straight-through or crossover cable (not familiar with the hardware). The AC icon may have nothing to do with UPS monitoring, but only indicate that the system thinks you're not on a laptop running from battery. -- This message posted from opensolaris.org _______________________________________________ opensolaris-help mailing list opensolaris-help@opensolaris.org
