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isdn/gigaset: leave DLE mode before hanging up 

Some firmware releases of Gigaset M105 do not accept AT+VLS=0 command
in DLE mode, so always leave DLE mode before sending the command.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tilman Schmidt 2013-01-21 11:57:20 +00:00 committed by David S. Miller
parent 03f18285cd
commit d2ca848194
1 changed files with 5 additions and 0 deletions
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5
drivers/isdn/gigaset/ev-layer.c
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@ -1693,6 +1693,11 @@ static void process_command_flags(struct cardstate *cs)
for (i = 0; i < cs->channels; ++i) {
bcs = cs->bcs + i;
if (bcs->at_state.pending_commands & PC_HUP) {
if (cs->dle) {
cs->curchannel = bcs->channel;
schedule_sequence(cs, &cs->at_state, SEQ_DLE0);
return;
}
bcs->at_state.pending_commands &= ~PC_HUP;
if (bcs->at_state.pending_commands & PC_CID) {
/* not yet dialing: PC_NOCID is sufficient */