linux-kernel - Re: [PATCH] serio: allow registered drivers to get status flag

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Date:	Tue, 18 Jan 2011 11:57:11 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	David Engraf <david.engraf@...go.com>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] serio: allow registered drivers to get status flag

On Tue, Jan 18, 2011 at 01:57:21PM +0100, David Engraf wrote:
> Parse the status byte information to the registered serio drivers as
> well as the character bytes.
> 
> Signed-off-by: David Engraf <david.engraf@...go.com>
> 

> --- linux-2.6.37/drivers/input/serio/serport.c.orig	2011-01-18 12:33:41.421709232 +0100
> +++ linux-2.6.37/drivers/input/serio/serport.c	2011-01-18 13:33:24.521711214 +0100
> @@ -116,8 +116,8 @@ static void serport_ldisc_close(struct t
>  
>  /*
>   * serport_ldisc_receive() is called by the low level tty driver when characters
> - * are ready for us. We forward the characters, one by one to the 'interrupt'
> - * routine.
> + * are ready for us. We forward the characters and flags, one by one to the 
> + * 'interrupt' routine.
>   */
>  
>  static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
> @@ -132,7 +132,7 @@ static void serport_ldisc_receive(struct
>  		goto out;
>  
>  	for (i = 0; i < count; i++)
> -		serio_interrupt(serport->serio, cp[i], 0);
> +		serio_interrupt(serport->serio, cp[i], fp[i]);
>  

Hi David,

The flags argument that serio_interrupt() accepts not the raw protocol
data, but sanitized, protocol-independent SERIO_TIMEOUT, SERIO_PARITY
and SERIO_FRAME bits.

Thanks.

-- 
Dmitry
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