From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sun, 19 May 2013 17:50:44 +0000 (+0200)
Subject: modem: Wait a moment after initializing.
X-Git-Tag: 007~125
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3255c8944144c5ee043cfb2c5e42bf719f23b8ac;p=network.git

modem: Wait a moment after initializing.

Some UMTS modems need some extra seconds to initialize
themselves after reset, so we wait a short moment...
---

diff --git a/functions.modem b/functions.modem
index b23d68b5..8b115fca 100644
--- a/functions.modem
+++ b/functions.modem
@@ -129,11 +129,34 @@ function __modem_chat_process_output() {
 function modem_initialize() {
 	local device="${1}"
 	assert isset device
+	shift
+
+	# Sleep for $sleep seconds, to give
+	# the modem a moment to initialize itself.
+	local sleep=1
+
+	while [ $# -gt 0 ]; do
+		case "${1}" in
+			--sleep=*)
+				sleep="$(cli_get_val "${1}")"
+				;;
+			*)
+				warning "Unrecognized argument: ${1}"
+				;;
+		esac
+		shift
+	done
+	assert isinteger sleep
 
 	log INFO "Initializing modem ${device}"
 
 	# Reset the modem.
 	modem_chat "${device}" "${AT_INITIALIZE}"
+
+	# Wait...
+	if [ ${sleep} -gt 0 ]; then
+		sleep ${sleep}
+	fi
 }
 
 # Exit codes of the sim_status function.
diff --git a/udev/network-hotplug-serial b/udev/network-hotplug-serial
index ead51af6..cb40768e 100755
--- a/udev/network-hotplug-serial
+++ b/udev/network-hotplug-serial
@@ -76,7 +76,7 @@ case "${ACTION}" in
 
 		# Initialize the modem here. Resets all established connections
 		# and so on.
-		modem_initialize "${DEVNAME}"
+		modem_initialize "${DEVNAME}" --sleep=3
 
 		# Unlock the SIM card if it has one.
 		if modem_sim_locked "${DEVNAME}"; then