How to power a serial port under linux?

Posted by Lex on Server Fault See other posts from Server Fault or by Lex
Published on 2010-03-17T08:10:13Z Indexed on 2010/03/17 8:11 UTC
Read the original article Hit count: 345

Filed under:

linux

|

power

|

serial-ports

|

shell-command

I got a serial to ethernet device connected to a Serial (COM) port on a Linux machine (debian etch), I connected it correctly but it did not power up, I suppose I need to power the device port, anyone knows how to power it under linux?

Thankyou in advance.

© Server Fault or respective owner

Related posts about linux

apt-get install and update fail

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I've got a problem with apt-get update and apt-get install ... commands . every time update or installing fails and errors are : Get:1 http://dl.google.com stable Release.gpg [198B] Ign http://dl.google.com/linux/chrome/deb/ stable/main Translation-en_US Get:2 http://dl… >>> More
kernel module compiling error

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
sh@ubuntu:/home/ccpp/helloworld$ make gcc-4.6 -O2 -DMODULE -D_KERNEL_ -W -Wall -Wstrict-prototypes -Wmissing-prototypes -isystem /lib/modules/`uname -r`/build/include -c -o hello-1.o hello-1.c hello-1.c:4:0: warning: "MODULE" redefined [enabled by default] <command-line>:0:0: note: this is… >>> More
Build-Essentials installation failing

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am having trouble accessing the several critical header files that show to be a part of the build process. The "Ubuntu Software Center" shows "Build Essentials" as installed: Next I did the following two commands, which did not improve the problem: ~$ sudo apt-get install build-essential [sudo]… >>> More
Updating Debian kernel

as seen on Super User - Search for 'Super User'
I'm trying to update my Debian machine to 2.6.32-46 (which is the new stable). However, after doing apt-get update my apt-cache search linux-image shows me: linux-headers-2.6.32-5-486 - Header files for Linux 2.6.32-5-486 linux-headers-2.6.32-5-686-bigmem - Header files for Linux 2.6.32-5-686-bigmem linux-headers-2… >>> More
Serial connection over a single USB cable (Windows to linux, or linux to linux)

as seen on Server Fault - Search for 'Server Fault'
I'm helping out with a project for an embedded device that only has USB and no serial. This device is running Linux. These days, when we need to connect to a serial port on a device we typically use a USB to serial adapter (on something like a phone system or a load balancing device, etc). I would… >>> More

Related posts about power

Power supply triggered to start by another power supply

as seen on Super User - Search for 'Super User'
I am building a raid array in a separate enclosure. I will be putting an empty tower case next to an existing tower computer, and this second tower case will only hold hard drives. There are many solutions for connecting the drives in the second case to the raid card in the first case (SFF-8088… >>> More
Which power USB hub uses if it has external power supply as well

as seen on Super User - Search for 'Super User'
I have 7 port USB hub with external supply. I tried turning it off by removing external power but then it takes power from motherboard and is still working. I have many external hardrives connected to it. i was worrying if i turn off the power it may damage the motherboard by withdrawing so much… >>> More
External Monitors shut off when Laptop Lid closes

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have researched the solution... gconftool-2 --type string --set /apps/gnome-power-manager/buttons/lid_ac "nothing" does not fix it. I have two external monitors and when I close my lid the settings are reset and the laptop's monitor is set to the default. Thanks! gsettings list-recursively… >>> More
Turn a Computer Power Supply into a Desktop Power Supply

as seen on How to geek - Search for 'How to geek'
If you’re looking for a desktop power supply for your electronics workbench, this tutorial video shows you how to turn a computer PSU into a desktop power supply. In the above video the guys at JumperOneTV show us how to make a desktop power supply. As an addendum to the video; they note in… >>> More
How to prevent screen locking when lid is closed?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have Ubuntu 11.10 with Gnome 3 (no Unity), gnome-screen-saver has been removed and replaced with xscreensaver. The screensaver stuff all works fine -- no complaints there. When I close my laptop lid, even for a second, the screen locks (and the dialog box asking for my password is xscreensaver's)… >>> More