Re: [PATCH] tty: serial: men_z135_uart: Fix driver for changes in hardware

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On Mon, Sep 08, 2014 at 04:17:33PM -0700, Greg Kroah-Hartman wrote:
> >
> > @@ -118,6 +117,10 @@ static int align;
> >  module_param(align, int, S_IRUGO);
> >  MODULE_PARM_DESC(align, "Keep hardware FIFO write pointer aligned, default 0");
> >
> > +static int rx_timeout;
> > +module_param(rx_timeout, uint, S_IRUGO);
> > +MODULE_PARM_DESC(rx_timeout, "RX timeout");
>
> Why add a module parameter?  Who will know to set this?  And to what
> value?
>

There will be a user manual describing the parameter. It's like the rxlvl and
txlvl parameters, you'll have to read the manual if you need other values than
the default ones.


> And what about this driver working on old hardware, didn't you just
> break this?
>

No. Currently the hardware is in a testing stage at only one customer and it is
an IP-Core inside a FPGA, so it can be (and already is) updated. So we can be
save to assume this is O.K.

> thanks,
>
> greg k-h

Hope that helped.
Johannes
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