Discovery of Printers in Network

[pavan]

Hi,

I am trying to port cups to Nokia 770 and have a problem with
discovery of printers in Network.

Using
$/usr/lib/cups/backend/snmp
the printers are detected and listed in x86 environment but not in Nokia 770.  I have looked into the source code and observed that the macro FD_ISSET(fd,&input) in 'scan_devices' function fails and it does not call the 'read_snmp_response'.

Could anyone throw some light on this problem ?

Thanks,
Pavan.