Enabling DTR on this modem was necessary to ensure stable operation.
ID 1c9e:9b05 OMEGA TECHNOLOGY (U8300)
ID 1c9e:9b3c OMEGA TECHNOLOGY (U9300)
U8300
/: Bus
|__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=option, 480M (Debug)
ID 1c9e:9b05 OMEGA TECHNOLOGY
|__ Port 1: Dev 3, If 1, Class=Vendor Specific Class, Driver=option, 480M (Modem / AT)
ID 1c9e:9b05 OMEGA TECHNOLOGY
|__ Port 1: Dev 3, If 2, Class=Vendor Specific Class, Driver=option, 480M (AT)
ID 1c9e:9b05 OMEGA TECHNOLOGY
|__ Port 1: Dev 3, If 3, Class=Vendor Specific Class, Driver=option, 480M (AT / Pipe / PPP)
ID 1c9e:9b05 OMEGA TECHNOLOGY
|__ Port 1: Dev 3, If 4, Class=Vendor Specific Class, Driver=qmi_wwan, 480M (NDIS / GobiNet / QMI WWAN)
ID 1c9e:9b05 OMEGA TECHNOLOGY
|__ Port 1: Dev 3, If 5, Class=Vendor Specific Class, Driver=, 480M (ADB)
ID 1c9e:9b05 OMEGA TECHNOLOGY
U9300
/: Bus
|__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=, 480M (ADB)
ID 1c9e:9b3c OMEGA TECHNOLOGY
|__ Port 1: Dev 3, If 1, Class=Vendor Specific Class, Driver=option, 480M (Modem / AT)
ID 1c9e:9b3c OMEGA TECHNOLOGY
|__ Port 1: Dev 3, If 2, Class=Vendor Specific Class, Driver=option, 480M (AT)
ID 1c9e:9b3c OMEGA TECHNOLOGY
|__ Port 1: Dev 3, If 3, Class=Vendor Specific Class, Driver=option, 480M (AT / Pipe / PPP)
ID 1c9e:9b3c OMEGA TECHNOLOGY
|__ Port 1: Dev 3, If 4, Class=Vendor Specific Class, Driver=qmi_wwan, 480M (NDIS / GobiNet / QMI WWAN)
ID 1c9e:9b3c OMEGA TECHNOLOGY
Tested successfully using Modem Manager on U9300.
Tested successfully using qmicli on U9300.
Signed-off-by: Coia Prant <coiaprant@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/net/usb/qmi_wwan.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index e2e181378f41..3dd8a2e24837 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1380,6 +1380,8 @@ static const struct usb_device_id products[] = {
{QMI_FIXED_INTF(0x1c9e, 0x9801, 3)}, /* Telewell TW-3G HSPA+ */
{QMI_FIXED_INTF(0x1c9e, 0x9803, 4)}, /* Telewell TW-3G HSPA+ */
{QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */
+ {QMI_QUIRK_SET_DTR(0x1c9e, 0x9b05, 4)}, /* Longsung U8300 */
+ {QMI_QUIRK_SET_DTR(0x1c9e, 0x9b3c, 4)}, /* Longsung U9300 */
{QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */
{QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */
{QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */
--
2.39.2
