openwrt/target/linux/generic/hack-5.15/780-usb-net-MeigLink_modem_support.patch

--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1024,6 +1024,7 @@ static const struct usb_device_id produc
 	{QMI_MATCH_FF_FF_FF(0x2c7c, 0x0512)},	/* Quectel EG12/EM12 */
 	{QMI_MATCH_FF_FF_FF(0x2c7c, 0x0620)},	/* Quectel EM160R-GL */
 	{QMI_MATCH_FF_FF_FF(0x2c7c, 0x0800)},	/* Quectel RM500Q-GL */
+	{QMI_MATCH_FF_FF_FF(0x05c6, 0xf601)},   /* MeigLink SLM750 */
 
 	/* 3. Combined interface devices matching on interface number */
 	{QMI_FIXED_INTF(0x0408, 0xea42, 4)},	/* Yota / Megafon M100-1 */
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -243,6 +243,8 @@ 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 */
@@ -1127,6 +1129,11 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0, 0) },
 	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
 	  .driver_info = RSVD(4) },
+	/* Meiglink products using Qualcomm vendor ID */
+	// Works OK. In case of some issues check macros that are used by Quectel Products
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, MEIGLINK_PRODUCT_SLM750, 0xff, 0xff, 0xff),
+	  .driver_info = NUMEP2 },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, MEIGLINK_PRODUCT_SLM750, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) | RSVD(2) | RSVD(3) | RSVD(4) | NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06, 0xff, 0, 0) },