<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7652.24"> <TITLE>Re: What USB port am I connected to?</TITLE> </HEAD> <BODY>  And dmesg will tell you exactly what dev you're dealing with... Jack - BB ----- Original Message ----- From: ubuntu-users-bounces@lists.ubuntu.com <ubuntu-users-bounces@lists.ubuntu.com> To: ubuntu-users@lists.ubuntu.com <ubuntu-users@lists.ubuntu.com> Sent: Fri Nov 02 10:00:22 2007 Subject: Re: What USB port am I connected to? John Dangler wrote: > On Fri, 2007-11-02 at 00:05 -0400, Alex Janssen wrote: >> I want to communicate with a serial device over the USB that is not a >> recognized device. It is a PLC(programmable logic controller). How do >> I >> tell which USB device file to open? i.e.; /dev/bus/usb/002/001 or >> 002... . Is there a way to tell what I'm plugged into? Is there a >> USB >> howto for programmers? > > 2 ways that I know of.... > plug in the device > go to a terminal, type dmesg and look at the last output... > OR > lsusb should also give you some indication lshal, and the various gui hal viewers, will give much more information about the actual /dev name. lsusb will only tell you which _bus_ it's on (in the example /dev/bus/usb/002) but not the device number, because that autoincrements every time something's plugged in. -- derek -- ubuntu-users mailing list ubuntu-users@lists.ubuntu.com Modify settings or unsubscribe at: <A HREF="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</A> </BODY> </HTML>