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broadband-modem: send always ATZ alone

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ITU rec v.250 (6.1.1) says:
  The DTE should not include additional commands on the same command line after
  the Z command because such commands may be ignored.
This commit is contained in:
Aleksander Morgado
2012-07-19 16:22:52 +02:00
parent b300110055
commit 3653ec4b8e
1 changed files with 8 additions and 6 deletions
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src/mm-broadband-modem.c
+8 -6
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@@ -2153,13 +2153,15 @@ modem_init_finish (MMIfaceModem *self,
}
static const MMBaseModemAtCommand modem_init_sequence[] = {
/* Init command */
{ "Z E0 V1", 3, FALSE, mm_base_modem_response_processor_no_result_continue },
/* Ensure echo is off after the init command; some modems ignore the
* E0 when it's in the same line as ATZ (Option GIO322).
/* Init command. ITU rec v.250 (6.1.1) says:
* The DTE should not include additional commands on the same command line
* after the Z command because such commands may be ignored.
* So run ATZ alone.
*/
{ "E0", 3, FALSE, NULL },
{ "Z", 3, FALSE, mm_base_modem_response_processor_no_result_continue },
/* Ensure echo is off after the init command */
{ "E0 V1", 3, FALSE, NULL },
/* Some phones (like Blackberries) don't support +CMEE=1, so make it
* optional. It completely violates 3GPP TS 27.007 (9.1) but what can we do...