[Asterisk-code-review] chan_dahdi: Add POLARITY function. (asterisk[master])

[N A]

Attention is currently required from: Kevin Harwell.
N A has posted comments on this change. ( https://gerrit.asterisk.org/c/asterisk/+/18362 )

Change subject: chan_dahdi: Add POLARITY function.
......................................................................


Patch Set 4:

(2 comments)

File channels/chan_dahdi.c:

https://gerrit.asterisk.org/c/asterisk/+/18362/comment/ceb83f6c_fd53fa99 
PS1, Line 195: 			<para>However, when read, the function will always return 0 or 1.</para>
> It seems "idle" and "reverse" are just synonyms for "0" and "1", correct?
Yup!


https://gerrit.asterisk.org/c/asterisk/+/18362/comment/30b75b0b_ff2e92c1 
PS1, Line 2675: 	int res;
              : 	struct dahdi_params dahdip;
              : 	struct dahdi_pvt *pvt;
              : 
              : 	if (strcasecmp(ast_channel_tech(chan)->type, "DAHDI")) {
              : 		ast_log(LOG_WARNING, "%s is not a DAHDI channel\n", ast_channel_name(chan));
              : 		return -1;
              : 	}
              : 
              : 	memset(&dahdip, 0, sizeof(dahdip));
              : 	res = ioctl(ast_channel_fd(chan, 0), DAHDI_GET_PARAMS, &dahdip);
              : 
              : 	if (res) {
              : 		ast_log(LOG_WARNING, "Unable to get parameters of %s: %s\n", ast_channel_name(chan), strerror(errno));
              : 		return -1;
              : 	}
              : 	if (!(dahdip.sigtype & __DAHDI_SIG_FXO)) {
              : 		ast_log(LOG_WARNING, "%s is not an FXS Channel\n", ast_channel_name(chan));
              : 		return -1;
              : 	}
              : 
              : 	pvt = ast_channel_tech_pvt(chan);
              : 	if (!dahdi_analog_lib_handles(pvt->sig, 0, 0)) {
              : 		ast_log(LOG_WARNING, "Channel signalling is not analog");
              : 		return -1;
              : 	}
> This code looks duped below. […]
Done



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Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Change-Id: If6f50998f723e4484bf68e2473f5cedfeaf9b8f1
Gerrit-Change-Number: 18362
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