[ltp] Serial port for a T40

James McKenzie linux-thinkpad@linux-thinkpad.org
Tue, 28 Sep 2004 20:41:15 -0700


Joan:

Do you plan on using the GPS unit only when you are home or otherwise 
connected to a mains (AC) power source?  If that is the case, then get 
the dock.  If not, get a USB to Serial convertor with a 4 port hub, 
either USB 1.1 or USB 2.0.  Units are available that do not require any 
power, other than the power supplied by the USB bus.  Of course, I 
recommend a powered hub when you have mains (AC) power available.  I 
have not run into a powered hub that runs off of power that can be 
obtained from the Thinkpad or an auto's lighter or power outlets.  Of 
course, using a GPS system may not be allowed on aircraft in flight.

James McKenzie


Joan Roig Amorós wrote:

>Hi, 
>
>does anybody have any experience connecting a GPS unit to a T40 running linux? 
>of course my T40 has no serial port, so... what is the best/cheapest way to 
>add a serial port that will work also with linux? serial to USB? PCMCIA to 
>serial (I see that cards  are ~$25 in ebay)? or should I wait for Xmas and 
>buy myself a dock?
>
>thank you,
>
>joan
>  
>