Re: [PATCH v6 2/2] Input: synaptics-rmi4 - add support for F34 V7 bootloader

From: Nick Dyer
Date: Wed Nov 23 2016 - 04:58:16 EST


On Tue, Nov 22, 2016 at 05:51:11PM -0800, Dmitry Torokhov wrote:
> On Sun, Nov 20, 2016 at 07:04:02PM +0000, Nick Dyer wrote:
> > + /* query 7 */
> > + unsigned char f34_query7_b0:1;
> > + unsigned char has_bootloader:1;
> > + unsigned char has_device_config:1;
> > + unsigned char has_flash_config:1;
> > + unsigned char has_manufacturing_block:1;
> > + unsigned char has_guest_serialization:1;
> > + unsigned char has_global_parameters:1;
> > + unsigned char has_core_code:1;
> > + unsigned char has_core_config:1;
> > + unsigned char has_guest_code:1;
> > + unsigned char has_display_config:1;
> > + unsigned char f34_query7_b11__15:5;
> > + unsigned char f34_query7_b16__23;
> > + unsigned char f34_query7_b24__31;
>
> I see bitfields and I think this is not going to work on big endian
> arches because unfortunately they "fill" the bytes with bits in opposite
> order.
>
> We had to rework old Unixsphere code to get rid of bitfields for on-wire
> data; this seems to be coming from that code base as well and so needs
> to be reworked too.

Hi Dmitry-

Thanks - that makes sense. I will rework this bit to remove the
bitfields.

cheers

Nick