net: huawei_cdc_ncm: Introduce the huawei_cdc_ncm driver

This driver supports devices using the NCM protocol as an encapsulation layer
for other protocols, like the E3131 Huawei 3G modem. This drivers approach was
heavily inspired by the qmi_wwan/cdc_mbim approach & code model.

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 40db31233313..85e4a01670f0 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -242,6 +242,21 @@ config USB_NET_CDC_NCM
             * ST-Ericsson M343 HSPA Mobile Broadband Modem (reference design)
             * Ericsson F5521gw Mobile Broadband Module
 
+config USB_NET_HUAWEI_CDC_NCM
+        tristate "Huawei NCM embedded AT channel support"
+        depends on USB_USBNET
+        select USB_WDM
+        select USB_NET_CDC_NCM
+        help
+                This driver supports huawei-style NCM devices, that use NCM as a
+                transport for other protocols, usually an embedded AT channel.
+                Good examples are:
+                * Huawei E3131
+                * Huawei E3251
+
+                To compile this driver as a module, choose M here: the module will be
+                called huawei_cdc_ncm.ko.
+
 config USB_NET_CDC_MBIM
         tristate "CDC MBIM support"
         depends on USB_USBNET