7ad65bf68d
NCM 1.0 does not support anything but Ethernet framing, hence CAIF payload will be put into Ethernet frames. Discovery is based on fixed USB vendor 0x04cc (ST-Ericsson), product-id 0x230f (NCM). In this variant only CAIF payload is sent over the NCM interface. The CAIF stack (cfusbl.c) will when USB interface register first check if we got a CDC NCM USB interface with the right VID, PID. It will then read the device's Ethernet address and create a 'template' Ethernet TX header, using a broadcast address as the destination address, and EthType 0x88b5 (802.1 Local Experimental - vendor specific). A protocol handler for 0x88b5 is setup for reception of CAIF frames from the CDC NCM USB interface. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
53 lines
1.5 KiB
Text
53 lines
1.5 KiB
Text
#
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# CAIF net configurations
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#
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menuconfig CAIF
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tristate "CAIF support"
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select CRC_CCITT
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default n
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---help---
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The "Communication CPU to Application CPU Interface" (CAIF) is a packet
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based connection-oriented MUX protocol developed by ST-Ericsson for use
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with its modems. It is accessed from user space as sockets (PF_CAIF).
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Say Y (or M) here if you build for a phone product (e.g. Android or
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MeeGo ) that uses CAIF as transport, if unsure say N.
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If you select to build it as module then CAIF_NETDEV also needs to be
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built as modules. You will also need to say yes to any CAIF physical
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devices that your platform requires.
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See Documentation/networking/caif for a further explanation on how to
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use and configure CAIF.
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config CAIF_DEBUG
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bool "Enable Debug"
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depends on CAIF
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default n
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--- help ---
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Enable the inclusion of debug code in the CAIF stack.
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Be aware that doing this will impact performance.
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If unsure say N.
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config CAIF_NETDEV
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tristate "CAIF GPRS Network device"
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depends on CAIF
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default CAIF
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---help---
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Say Y if you will be using a CAIF based GPRS network device.
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This can be either built-in or a loadable module,
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If you select to build it as a built-in then the main CAIF device must
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also be a built-in.
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If unsure say Y.
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config CAIF_USB
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tristate "CAIF USB support"
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depends on CAIF
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default n
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---help---
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Say Y if you are using CAIF over USB CDC NCM.
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This can be either built-in or a loadable module,
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If you select to build it as a built-in then the main CAIF device must
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also be a built-in.
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If unsure say N.
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