From Jos Delbar <jos.delbar@ugent.be>
Written and posted to gentoo bugzilla before 2.9.10 was released
http://bugs.gentoo.org/60676

--- slmodem-2.9.9a/modem/modem_cmdline.c	2005-01-19 14:34:16.009578193 +0100
+++ slmodem-2.9.9a-fixed/modem/modem_cmdline.c	2005-01-19 14:36:57.987589517 +0100
@@ -103,7 +103,7 @@
 	{'v',"version","show version and exit"},
 	{'c',"country","default modem country name",MANDATORY,STRING,"USA"},
 	{ 0 ,"countrylist","show list of supported countries"},
-	{'a',"alsa","ALSA mode (see README for howto)"},
+	{'a',"alsa","ALSA mode (see README for howto)",OPTIONAL,STRING,"hw:1"},
 	{'g',"group","Modem TTY group",MANDATORY,STRING,"uucp"},
 	{'p',"perm","Modem TTY permission",MANDATORY,INTEGER,"0660"},
 	{'n',"nortpriority","run with regular priority"},
@@ -237,7 +237,7 @@
 		PR_INFO("ALSA support is not compiled in (see README for howto).\n");
 		exit(1);
 #endif
-		modem_dev_name = modem_alsa_dev_name;
+		modem_dev_name = opt_list[OPT_ALSA].arg_val;
 		use_alsa = 1;
 	}
 	if(opt_list[OPT_GROUP].found)