On Mon, Dec 04, 2017 at 09:12:52PM +0200, Marcus Wolf wrote:
>
>
> Am 04.12.2017 um 12:24 schrieb Dan Carpenter:
> > On Sun, Dec 03, 2017 at 04:17:25PM +0100, Simon Sandström wrote:
> > > Renames enum dataMode and its values packet, continuous, continuousNoSync
> > > to enum data_mode and PACKET, CONTINUOUS, CONTINUOUS_NO_SYNC. Fixes
> > > checkpatch.pl warnings: "Avoid CamelCase: <dataMode>, <continuousNoSync>".
> >
> > These names are too generic. Delete them. Use DATAMODUL_MODE_PACKET
> > and friends directly.
> >
> > int rf69_set_data_mode(struct spi_device *spi, u8 val)
> > {
> > return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODE) | val);
> > }
> >
> > Only DATAMODUL_MODE_PACKET is ever used. There is no need to validate
> > the parameters.
> >
> > regards,
> > dan carpenter
> >
>
> Hi Dan, hi Simon,
>
> like I wrote a few days ago to Marcin Ciupak, I see two disadvantages in
> doing so.
>
> If you want to go that way, you - as far as I believe - need to alter the
> values in rf69_enum.h, so they carry the corresponding values from
> rf69_reg.h. To avoid confusion, you will need to remove the values from
> rf69_reg.h.
> But then you have to keep track of two files (enum.h and reg.h), if you want
> to further develop register access stuff. I would prefer to keep all
> chip/register related values at the same place.
In my mind we were just deleting one of these not keeping them in sync.
>
> Second there might be the idea of supporting different chips in the future
> (I already thought about).
Linux style is never to write code for the future.
> Then it might be, that DATAMODUL_MODE_PACKET might need an other value.
That's future code so we can delete that sentence for now.
> Therefore, I introduced the "double layer" - enums as labels for the user
> space and defines, containing the values, for the register access.
No. We don't do abstraction layers.
regards,
dan carpenter
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