The device exposes AT, NMEA and DIAG ports in both USB configurations.
The patch explicitly ignores interfaces 0 and 1, as they're bound to
other drivers already; and also interface 6, which is a GNSS interface
for which we don't have a driver yet.
T: Bus=01 Lev=03 Prnt=04 Port=00 Cnt=01 Dev#= 18 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 2
P: Vendor=413c ProdID=81d7 Rev=03.18
S: Manufacturer=DELL
S: Product=DW5821e Snapdragon X20 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 7 Cfg#= 2 Atr=a0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I: If#= 6 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
T: Bus=01 Lev=03 Prnt=04 Port=00 Cnt=01 Dev#= 16 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 2
P: Vendor=413c ProdID=81d7 Rev=03.18
S: Manufacturer=DELL
S: Product=DW5821e Snapdragon X20 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I: If#= 1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
Signed-off-by: Aleksander Morgado <aleksan...@aleksander.es>
Cc: stable <sta...@vger.kernel.org>
---
drivers/usb/serial/option.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 664e61f16b6a..0215b70c4efc 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -196,6 +196,8 @@ static void option_instat_callback(struct urb *urb);
#define DELL_PRODUCT_5800_V2_MINICARD_VZW 0x8196 /* Novatel E362 */
#define DELL_PRODUCT_5804_MINICARD_ATT 0x819b /* Novatel E371 */
+#define DELL_PRODUCT_5821E 0x81d7
+
#define KYOCERA_VENDOR_ID 0x0c88
#define KYOCERA_PRODUCT_KPC650 0x17da
#define KYOCERA_PRODUCT_KPC680 0x180a
@@ -1030,6 +1032,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID,
DELL_PRODUCT_5800_MINICARD_VZW, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID,
DELL_PRODUCT_5800_V2_MINICARD_VZW, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID,
DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) },
+ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E),
+ .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, /*
ADU-E100, ADU-310 */
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
--
2.18.0
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