+//usage:#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 1
+//usage:# define IF_UDHCP_VERBOSE(...) __VA_ARGS__
+//usage:#else
+//usage:# define IF_UDHCP_VERBOSE(...)
+//usage:#endif
+//usage:#define udhcpc_trivial_usage
+//usage: "[-fbq"IF_UDHCP_VERBOSE("v")IF_FEATURE_UDHCPC_ARPING("a")"RB] [-t N] [-T SEC] [-A SEC/-n]\n"
+//usage: " [-i IFACE]"IF_FEATURE_UDHCP_PORT(" [-P PORT]")" [-s PROG] [-p PIDFILE]\n"
+//usage: " [-oC] [-r IP] [-V VENDOR] [-F NAME] [-x OPT:VAL]... [-O OPT]..."
+//usage:#define udhcpc_full_usage "\n"
+//usage: IF_LONG_OPTS(
+//usage: "\n -i,--interface IFACE Interface to use (default eth0)"
+//usage: IF_FEATURE_UDHCP_PORT(
+//usage: "\n -P,--client-port PORT Use PORT (default 68)"
+//usage: )
+//usage: "\n -s,--script PROG Run PROG at DHCP events (default "CONFIG_UDHCPC_DEFAULT_SCRIPT")"
+//usage: "\n -p,--pidfile FILE Create pidfile"
+//usage: "\n -B,--broadcast Request broadcast replies"
+//usage: "\n -t,--retries N Send up to N discover packets (default 3)"
+//usage: "\n -T,--timeout SEC Pause between packets (default 3)"
+//usage: "\n -A,--tryagain SEC Wait if lease is not obtained (default 20)"
+//usage: "\n -n,--now Exit if lease is not obtained"
+//usage: "\n -q,--quit Exit after obtaining lease"
+//usage: "\n -R,--release Release IP on exit"
+//usage: "\n -f,--foreground Run in foreground"
+//usage: USE_FOR_MMU(
+//usage: "\n -b,--background Background if lease is not obtained"
+//usage: )
+//usage: "\n -S,--syslog Log to syslog too"
+//usage: IF_FEATURE_UDHCPC_ARPING(
+//usage: "\n -a,--arping Use arping to validate offered address"
+//usage: )
+//usage: "\n -r,--request IP Request this IP address"
+//usage: "\n -o,--no-default-options Don't request any options (unless -O is given)"
+//usage: "\n -O,--request-option OPT Request option OPT from server (cumulative)"
+//usage: "\n -x OPT:VAL Include option OPT in sent packets (cumulative)"
+//usage: "\n Examples of string, numeric, and hex byte opts:"
+//usage: "\n -x hostname:bbox - option 12"
+//usage: "\n -x lease:3600 - option 51 (lease time)"
+//usage: "\n -x 0x3d:0100BEEFC0FFEE - option 61 (client id)"
+//usage: "\n -F,--fqdn NAME Ask server to update DNS mapping for NAME"
+//usage: "\n -V,--vendorclass VENDOR Vendor identifier (default 'udhcp VERSION')"
+//usage: "\n -C,--clientid-none Don't send MAC as client identifier"
+//usage: IF_UDHCP_VERBOSE(
+//usage: "\n -v Verbose"
+//usage: )
+//usage: )
+//usage: IF_NOT_LONG_OPTS(
+//usage: "\n -i IFACE Interface to use (default eth0)"
+//usage: IF_FEATURE_UDHCP_PORT(
+//usage: "\n -P PORT Use PORT (default 68)"
+//usage: )
+//usage: "\n -s PROG Run PROG at DHCP events (default "CONFIG_UDHCPC_DEFAULT_SCRIPT")"
+//usage: "\n -p FILE Create pidfile"
+//usage: "\n -B Request broadcast replies"
+//usage: "\n -t N Send up to N discover packets (default 3)"
+//usage: "\n -T SEC Pause between packets (default 3)"
+//usage: "\n -A SEC Wait if lease is not obtained (default 20)"
+//usage: "\n -n Exit if lease is not obtained"
+//usage: "\n -q Exit after obtaining lease"
+//usage: "\n -R Release IP on exit"
+//usage: "\n -f Run in foreground"
+//usage: USE_FOR_MMU(
+//usage: "\n -b Background if lease is not obtained"
+//usage: )
+//usage: "\n -S Log to syslog too"
+//usage: IF_FEATURE_UDHCPC_ARPING(
+//usage: "\n -a Use arping to validate offered address"
+//usage: )
+//usage: "\n -r IP Request this IP address"
+//usage: "\n -o Don't request any options (unless -O is given)"
+//usage: "\n -O OPT Request option OPT from server (cumulative)"
+//usage: "\n -x OPT:VAL Include option OPT in sent packets (cumulative)"
+//usage: "\n Examples of string, numeric, and hex byte opts:"
+//usage: "\n -x hostname:bbox - option 12"
+//usage: "\n -x lease:3600 - option 51 (lease time)"
+//usage: "\n -x 0x3d:0100BEEFC0FFEE - option 61 (client id)"
+//usage: "\n -F NAME Ask server to update DNS mapping for NAME"
+//usage: "\n -V VENDOR Vendor identifier (default 'udhcp VERSION')"
+//usage: "\n -C Don't send MAC as client identifier"
+//usage: IF_UDHCP_VERBOSE(
+//usage: "\n -v Verbose"
+//usage: )
+//usage: )
+//usage: "\nSignals:"
+//usage: "\n USR1 Renew lease"
+//usage: "\n USR2 Release lease"
+
+