Fedora7 USB GPS problem

Paul Olson paulo at olson-consulting.com
Mon Nov 19 04:30:39 UTC 2007


Hello-
    Having a problem getting a DeLORME USB GPS LT-20 device working with 
my Fedora 7 laptop.  It is supposed to work with the cypress_m8 serial 
module.

when I loaded the module and plugged in the device, it created the 
device (a ls -l in /dev shows this:  crw-rw---- 1 root uucp 188,  0 
2007-11-18 22:24 /dev/ttyUSB0).  it shows up when I do a 'cat 
/proc/bus/usb/devices':
T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  5 Spd=12  MxCh= 0
D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=1163 ProdID=0200 Rev= 0.01
S:  Manufacturer=DeLorme Publishing
S:  Product=DeLorme USB Earthmate     
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=03(HID  ) Sub=00 Prot=00 Driver=cypress
E:  Ad=81(I) Atr=03(Int.) MxPS=  32 Ivl=6ms
E:  Ad=02(O) Atr=03(Int.) MxPS=  32 Ivl=6ms


when I do a 'cat /dev/ttyUSB0' I get basically nothing as output.  Some 
Internet searching tells me to comment out line 408 (that haas the code 
'cypress_set_dead(port);') in the cypress_m8.c file and recompile the 
module.  At this point I am stuck.  I found the file and there is the 
appropriate line at position 408, I can comment it out but do not need 
to know what to do to recompile this module.

Any assistance would be greatly appreciated!

Paul Olson





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