diff options
| author | Brian Niebuhr <bniebuhr@efjohnson.com> | 2009-08-14 19:04:22 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-23 17:46:35 +0400 |
| commit | 9b39e9ddedeef48569f8aac60a7b4c1fbb127c7d (patch) | |
| tree | d2cc583190e18fa03298e84093c3346e1646007c /drivers/usb/gadget/u_ether.h | |
| parent | 877accca79b706afe5d78b9a92cf4f22919fb2b0 (diff) | |
| download | linux-9b39e9ddedeef48569f8aac60a7b4c1fbb127c7d.tar.xz | |
USB: gadget: Add EEM gadget driver
This patch adds a CDC EEM ethernet gadget driver. CDC EEM is a newer
USB ethernet specification that uses a simpler interface than the older
CDC ECM. This makes CDC EEM usable by a wider set of USB hardware.
By default the ethernet gadget will still use CDC ECM/Subset, but kernel
configuration and/or a module parameter will allow alternative use of
the CDC EEM protocol.
Changes since last version:
- Brought in missing RNDIS changes that caused compile error
- Modified 'sentinel CRC' checking to match EEM host driver
Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/u_ether.h')
| -rw-r--r-- | drivers/usb/gadget/u_ether.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h index 0d1f7ae3b071..91b39ffdf6ea 100644 --- a/drivers/usb/gadget/u_ether.h +++ b/drivers/usb/gadget/u_ether.h @@ -60,12 +60,13 @@ struct gether { u16 cdc_filter; - /* hooks for added framing, as needed for RNDIS and EEM. - * we currently don't support multiple frames per SKB. - */ + /* hooks for added framing, as needed for RNDIS and EEM. */ u32 header_len; - struct sk_buff *(*wrap)(struct sk_buff *skb); - int (*unwrap)(struct sk_buff *skb); + struct sk_buff *(*wrap)(struct gether *port, + struct sk_buff *skb); + int (*unwrap)(struct gether *port, + struct sk_buff *skb, + struct sk_buff_head *list); /* called on network open/close */ void (*open)(struct gether *); @@ -109,6 +110,7 @@ static inline bool can_support_ecm(struct usb_gadget *gadget) /* each configuration may bind one instance of an ethernet link */ int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]); int ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]); +int eem_bind_config(struct usb_configuration *c); #ifdef CONFIG_USB_ETH_RNDIS |