[gpsd-users] No output from gps device

[nagaraj]

cat /dev/ttyACM0 hangs with no output. I am using u-blox EWM-G107F,
Embedded GPS/ GALILEO Mini PCIe Card on my wireless router. However,
after I reboot the device, I see gps sentences when I do cat
/dev/ttyACM0. Does any body have any clue what could be causing this ?
I see /dev/ttyACM0 is created

address@hidden:~# ls -l /dev/ttyACM0
crw-rw-rw-    1 root     root      166,   0 Dec 31  2012 /dev/ttyACM0
address@hidden:~#

Also cdc_acm driver is loaded and running properly

address@hidden:~# lsmod | grep acm
cdc_acm                11536  2
usbcore               104642  6 asix,usbserial,usbnet,cdc_acm,ehci_hcd
address@hidden:~#

Please let me know if anybody has any ideas.