[Techtalk] USB hardware question

[Michael Carson]

    Thanks, I can get the info from dmesg.  Suprisingly I found that the 
info is not in /var/log/dmesg; I always assumed they had the same info. 
 From looking at the timestamps of files in /var/log, the only place it 
might be found is messages.  I found that the device for the serial 
adapter is printed there (I don't remember seeing it there before, if 
that's because I missed it, or because I'm running a newer kernel is 
something I'm unwilling to reboot to find out.).  The SCSI emulated 
devices are listed in dmesg only.  I've run out of USB toys in the 
office to play with - I'll find out what other things do later.  
    So, Laurel, thank you for your help, it seems dmesg is the way to go 
for me.

C.

Laurel Fan wrote:

>On Thu, Jan 10, 2002 at 01:30:13PM -0500, Michael Carson wrote:
>
>>     One additional question that's been bugging me is how do I tell what
>>device devices plugged into the USB ports are using?  I have an MP3
>>player that sometimes is /dev/sda and sometimes /dev/sdb, a serial port
>>that is /dev/ttyUSB0 that took the better part of a day to find, etc.
>>  It seems logical that this info should be found in /proc or /var/log/
>>but heck if I can find it.  Any ideas?
>>
>
>I seem to remember getting this information either from the 'dmesg'
>command, looking at /var/log/dmesg (which is pretty much the same
>thing as the command), and in /var/log/kern.log.
>
>Most of the logs in /var/log on your system are probably (it can vary
>by distribution) controlled by syslogd.  Individual programs tell
>syslogd[1] when they have something that they want logged, and then
>syslogd organizes them into the log files.  syslogd figures out where
>the messages go by looking at its config file, /etc/syslog.conf.
>For example, I have this line in /etc/syslog.conf:
>kern.*               -/var/log/kern.log
>Meaning that all kernel messages should be put in /var/log/kern.log.
>
>[1] using the syslog() function
>