Re: [PATCH 4/4] Bluetooth: Use a stream-oriented recvmsg with SOCK_STREAM L2CAP sockets.

["Gustavo F. Padovan" <padovan@profusion.mobi>]

* Mat Martineau <mathewm@codeaurora.org> [2010-09-08 10:05:29 -0700]:

> L2CAP ERTM sockets can be opened with the SOCK_STREAM socket type,
> which is a mandatory request for ERTM mode.
> 
> However, these sockets still have SOCK_SEQPACKET read semantics when
> bt_sock_recvmsg() is used to pull data from the receive queue.  If the
> application is only reading part of a frame, then the unread portion
> of the frame is discarded.  If the application requests more bytes
> than are in the current frame, only the current frame's data is
> returned.
> 
> This patch utilizes common code derived from RFCOMM's recvmsg()
> function to make L2CAP SOCK_STREAM reads behave like RFCOMM reads (and
> other SOCK_STREAM sockets in general).  The application may read one
> byte at a time from the input stream and not lose any data, and may
> also read across L2CAP frame boundaries.
> 
> Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
> ---
>  net/bluetooth/l2cap.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)

Acked-by: Gustavo F. Padovan <padovan@profusion.mobi>

-- 
Gustavo F. Padovan
ProFUSION embedded systems - http://profusion.mobi