Messages in this thread | | | Date | Tue, 22 Mar 2022 10:53:36 +1300 | From | Daniel Beer <> | Subject | Re: [PATCH] winmate-fm07-keys: Winmate FM07/FM07P buttons |
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On Mon, Mar 21, 2022 at 08:13:15PM +0000, Barnabás Pőcze wrote: > > +#define PORT_CMD 0x6c > > +#define PORT_DATA 0x68 > > + > > +#define EC_ADDR_KEYS 0x3b > > +#define EC_CMD_READ 0x80 > > It seems you are reading from the embedded controller, have you checked if the > ACPI EC driver works? Then you could probably just use the `ec_{read,write}()` functions.
Hi Barnabás,
There is already an ACPI EC driver working on this system, but it's using ports 0x66 and 0x62. I guess this one is something unrelated, although it does appear to use the same protocol.
I might be missing something, but it doesn't look like I can use the ec_ functions in this case as they will direct everything towards the EC at 0x66/0x62. Is there anything else you'd suggest?
If it helps to know, the hardware vendor shipped an Ubuntu distribution with a kernel module that just exposed the ability to read/write ports 0x6c/0x68 via chardev ioctls, and then a proprietary userspace program polled for button states.
I'll address your other comments in v2.
Cheers, Daniel
-- Daniel Beer Software Development Manager Tirotech Ltd
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