Re: [RFC/RFT] Raw access to serio ports (1/2)

[Dmitry Torokhov <dtor_core@ameritech.net>]

On Wednesday 02 June 2004 02:43 am, Dmitry Torokhov wrote:
> On Wednesday 02 June 2004 02:36 am, Andrew Morton wrote:
> > Dmitry Torokhov <dtor_core@ameritech.net> wrote:
> > >
> > > Hi,
> > > 
> > > Below is an implementation of rawdev driver.
> > 
> > Yes, it does appear that we need the feature, thanks.
> > 
> > > Comments?
> > 
> > They're the thingies inside /* and */.  Your patch is refreshingly free of
> > them ;)
> > 
> > > +static ssize_t rawdev_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
> > > +{
> > > +	struct rawdev_list *list = file->private_data;
> > > +	ssize_t written = 0;
> > > +	int retval;
> > > +	unsigned char c;
> > > +
> > > +	retval = down_interruptible(&rawdev_sem);
> > > +	if (retval)
> > > +		return retval;
> > > +
> > > +	if (!list->rawdev->serio) {
> > > +		retval = -ENODEV;
> > > +		goto out;
> > > +	}
> > 
> > The return values here are mucked up - this function returns `written'.
> 
> Or an error code in negative notation - it's the standard practice for
> read/write. Am I missing something?
> 
Oh, yes, I am... Sorry, will fix tomorrow.

-- 
Dmitry