netdev - Re: [PATCH 3/3] Add reference to CAPI 2.0 standard

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Message-Id: <20090422173232.ad2b3f49.rdunlap@xenotime.net>
Date:	Wed, 22 Apr 2009 17:32:32 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	"Karsten Keil" <Karsten-Keil@...nline.de>
Cc:	linux-kernel@...r.kernel.org, Randy Dunlap <rdunlap@...otime.net>,
	David Miller <davem@...emloft.net>, tilman@...p.cc,
	isdn4linux@...tserv.isdn4linux.de,
	i4ldeveloper@...tserv.isdn4linux.de, netdev@...r.kernel.org
Subject: Re: [PATCH 3/3] Add reference to CAPI 2.0 standard

On Wed, 22 Apr 2009 16:31:48 +0200 Karsten Keil wrote:

> Move the entry about CAPI 2.0 to the beginning and add a URL.
> Incorporate changes suggested by Randy Dunlap, thanks for proofreading.
> 
> Signed-off-by: Karsten Keil <keil@...systems.de>
> ---
>  Documentation/isdn/INTERFACE.CAPI |   20 +++++++++++++-------
>  1 files changed, 13 insertions(+), 7 deletions(-)
> 
> diff --git a/Documentation/isdn/INTERFACE.CAPI b/Documentation/isdn/INTERFACE.CAPI
> index 8947ffc..4d802ee 100644
> --- a/Documentation/isdn/INTERFACE.CAPI
> +++ b/Documentation/isdn/INTERFACE.CAPI
> @@ -3,6 +3,11 @@ Kernel CAPI Interface to Hardware Drivers
>  
>  1. Overview
>  
> +From the CAPI 2.0 spezification:
                     ~~~~~~~~~~~~~

typo or language?    specification:


> +COMMON-ISDN-API (CAPI) is an application programming interface standard used
> +to access ISDN equipment connected to basic rate interfaces (BRI) and primary
> +rate interfaces (PRI).
> +
>  Kernel CAPI operates as a dispatching layer between CAPI applications and CAPI
>  hardware drivers. Hardware drivers register ISDN devices (controllers, in CAPI
>  lingo) with Kernel CAPI to indicate their readiness to provide their service
> @@ -12,6 +17,9 @@ application registration to an available device, forwarding it to the
>  corresponding hardware driver. Kernel CAPI then forwards CAPI messages in both
>  directions between the application and the hardware driver.
>  
> +Format and semantics of CAPI messages are specified in the CAPI 2.0 standard.
> +This standard is freely available from http://www.capi.org.
> +
>  
>  2. Driver and Device Registration
>  
> @@ -53,12 +61,10 @@ open() operation on regular files or character devices.
>  After a successful return from register_appl(), CAPI messages from the
>  application may be passed to the driver for the device via calls to the
>  send_message() callback function. The CAPI message to send is stored in the
> -data portion of a skb. Conversely, the driver may call Kernel CAPI's
> +data portion of an skb. Conversely, the driver may call Kernel CAPI's
>  capi_ctr_handle_message() function to pass a received CAPI message to Kernel
>  CAPI for forwarding to an application, specifying its ApplID.
>  
> -Format and semantics of CAPI messages are specified in the CAPI 2.0 standard.
> -
>  Deregistration requests (CAPI operation CAPI_RELEASE) from applications are
>  forwarded as calls to the release_appl() callback function, passing the same
>  ApplID as with register_appl(). After return from release_appl(), no CAPI
> @@ -75,9 +81,9 @@ the following non-private fields, all to be set by the driver before calling
>  register_capi_driver():
>  
>  char name[32]
> -	the name of the driver, as a zero terminated ASCII string
> +	the name of the driver, as a zero-terminated ASCII string
>  char revision[32]
> -	the revision number of the driver, as a zero terminated ASCII string
> +	the revision number of the driver, as a zero-terminated ASCII string
>  int (*add_card)(struct capi_driver *driver, capicardparams *data)
>  	a callback function pointer (may be NULL)
>  
> @@ -100,10 +106,10 @@ void *driverdata
>  	an opaque pointer to driver specific data, not touched by Kernel CAPI
>  
>  char name[32]
> -	the name of the controller, as a zero terminated ASCII string
> +	the name of the controller, as a zero-terminated ASCII string
>  
>  char *driver_name
> -	the name of the driver, as a zero terminated ASCII string
> +	the name of the driver, as a zero-terminated ASCII string
>  
>  int (*load_firmware)(struct capi_ctr *ctrlr, capiloaddata *ldata)
>  	(optional) pointer to a callback function for sending firmware and
> -- 

---
~Randy
--
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