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-rw-r--r--target/linux/generic/backport-4.14/030-USB-serial-option-fix-dwm-158-3g-modem-interface.patch42
1 files changed, 42 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.14/030-USB-serial-option-fix-dwm-158-3g-modem-interface.patch b/target/linux/generic/backport-4.14/030-USB-serial-option-fix-dwm-158-3g-modem-interface.patch
new file mode 100644
index 0000000000..eccfbe5612
--- /dev/null
+++ b/target/linux/generic/backport-4.14/030-USB-serial-option-fix-dwm-158-3g-modem-interface.patch
@@ -0,0 +1,42 @@
+From ebe37f322acbb95966094cb2b0fff6e44b5893a6 Mon Sep 17 00:00:00 2001
+From: Giuseppe Lippolis <giu.lippolis@gmail.com>
+Date: Mon, 23 Apr 2018 09:03:06 +0200
+Subject: [PATCH] USB: serial: option: fix dwm-158 3g modem interface
+
+The dwm-158 interface 4 and 5 doesn't answer to the AT commands
+and doesn't appears a option interface.
+Tested on openwrt distribution (kernel 4.14 using the old blacklist
+definitions).
+
+Lars Melin also writes:
+
+ Blacklisting interface 4 and 5 is correct because:
+
+ MI_00 D-Link Mobile Broadband Device (cdc_ether)
+ MI_02 D-Link HSPA+DataCard Diagnostics Interface (also ppp modem)
+ MI_03 D-Link HSPA+DataCard NMEA Device
+ MI_04 D-Link HSPA+DataCard Speech Port
+ MI_05 D-Link HSPA+DataCard Debug Port
+ MI_06 USB Mass Storage Device
+
+Signed-off-by: Giuseppe Lippolis <giu.lippolis@gmail.com>
+[ johan: add Lars's comment on the interface layout ]
+Cc: Lars Melin <larsm17@gmail.com>
+Cc: stable <stable@vger.kernel.org> # c3a65808f04a
+Signed-off-by: Johan Hovold <johan@kernel.org>
+---
+ drivers/usb/serial/option.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/usb/serial/option.c
++++ b/drivers/usb/serial/option.c
+@@ -2046,7 +2046,8 @@ static const struct usb_device_id option
+ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d01, 0xff) }, /* D-Link DWM-156 (variant) */
+ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d02, 0xff) },
+ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d03, 0xff) },
+- { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff) }, /* D-Link DWM-158 */
++ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff), /* D-Link DWM-158 */
++ .driver_info = (kernel_ulong_t)&cinterion_rmnet2_blacklist },
+ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d0e, 0xff) }, /* D-Link DWM-157 C1 */
+ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff), /* D-Link DWM-221 B1 */
+ .driver_info = (kernel_ulong_t)&net_intf4_blacklist },