Hi Zhenhua,

> +static gboolean search_entry(const char *str, struct error_entry *e,
> +						int maxentries,
> +						enum ofono_error_type type,
> +						struct ofono_error *error)
> +{
> +	int i;
> +
> +	for (i = 0; i < maxentries; i++) {
> +		if (!strcmp(e[i].str, str)) {
> +			error->type = type;
> +			error->error = e[i].error;
> +			return TRUE;
> +		}
> +	}
> +
> +	return FALSE;
> +}

This doesn't really make sense, the errors from the modem usually come in the 
form of +CMS ERROR: 123 assuming we enabled +CMEE=1.  If we enabled +CMEE=2 
then the numeric error code gets converted to a string.  The former is 
preferable as the string might be different from what oFono has.  What you're 
matching here will always result in an unknown error.

Regards,
-Denis