AT^SYSCFGEX must be used on LTE Huawei modems to enable LTE support.
But some modems (or firmwares?) do not support this command and AT^SYSCFG
must be used to get/set radio settings.
This has been introduced in commit:
22adf6402c828f8b8cca1b65d8a46ba7792eb787
There is a bug in this commit and AT^SYSCFGEX commands are used even on
modems not supporting it.
---
drivers/huaweimodem/radio-settings.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/huaweimodem/radio-settings.c
b/drivers/huaweimodem/radio-settings.c
index 40431d3..20181d2 100644
--- a/drivers/huaweimodem/radio-settings.c
+++ b/drivers/huaweimodem/radio-settings.c
@@ -532,6 +532,7 @@ static void syscfgex_support_cb(gboolean ok, GAtResult
*result,
if (!ok) {
g_at_chat_send(rsd->chat, "AT^SYSCFG=?", syscfg_prefix,
syscfg_support_cb, rs, NULL);
+ return;
}
rsd->syscfgex_cap = 1;
--
2.7.4
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