Index: linux-5.4.137/drivers/usb/serial/option.c
===================================================================
--- linux-5.4.137.orig/drivers/usb/serial/option.c
+++ linux-5.4.137/drivers/usb/serial/option.c
@@ -241,6 +241,8 @@ static void option_instat_callback(struc
 #define UBLOX_PRODUCT_R6XX			0x90fa
 /* These Yuga products use Qualcomm's vendor ID */
 #define YUGA_PRODUCT_CLM920_NC5			0x9625
+/* These Meiglink products use Qualcomm's vendor ID */
+#define MEIGLINK_PRODUCT_SLM750			0xf601
 
 #define QUECTEL_VENDOR_ID			0x2c7c
 /* These Quectel products use Quectel's vendor ID */
@@ -1102,6 +1104,9 @@ static const struct usb_device_id option
 	/* u-blox products using Qualcomm vendor ID */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, UBLOX_PRODUCT_R410M),
 	  .driver_info = RSVD(1) | RSVD(3) },
+	/* Meiglink products using Qualcomm vendor ID */
+	// Works OK in case of some issues check macros that are used by Quectel Products
+	{ USB_DEVICE(QUALCOMM_VENDOR_ID, MEIGLINK_PRODUCT_SLM750)},
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, UBLOX_PRODUCT_R6XX),
 	  .driver_info = RSVD(3) },
 	/* Quectel products using Quectel vendor ID */
Index: linux-5.4.137/drivers/net/usb/qmi_wwan.c
===================================================================
--- linux-5.4.137.orig/drivers/net/usb/qmi_wwan.c
+++ linux-5.4.137/drivers/net/usb/qmi_wwan.c
@@ -1171,6 +1171,7 @@ static const struct usb_device_id produc
 	{QMI_FIXED_INTF(0x05c6, 0x9079, 6)},
 	{QMI_FIXED_INTF(0x05c6, 0x9079, 7)},
 	{QMI_FIXED_INTF(0x05c6, 0x9079, 8)},
+	{QMI_MATCH_FF_FF_FF(0x05c6, 0xf601)}, 	/* Meiglink SLM750 (in case of issues check if DTR flag setting is enough) */
 	{QMI_FIXED_INTF(0x05c6, 0x9080, 5)},
 	{QMI_FIXED_INTF(0x05c6, 0x9080, 6)},
 	{QMI_FIXED_INTF(0x05c6, 0x9080, 7)},