linux-kernel - Re: [PATCH] Add support for the Mid 2011 MacBook Air keyboard layout

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Date:	Sun, 06 Nov 2011 15:22:40 -0800
From:	Dirk Hohndel <hohndel@...radead.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Joshua V Dillon <jvdillon@...il.com>,
	Chase Douglas <chase.douglas@...onical.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Add support for the Mid 2011 MacBook Air keyboard layout

On Sun, 6 Nov 2011 12:12:49 -0800, Linus Torvalds <torvalds@...ux-foundation.org> wrote:
> Now, I have the 11" one which apparently has a different keyboard ID,
> but the *reason* it works for me is that my keyboard ID is apparently
> 0x0249, which is USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI.
> 
> And because that one isn't known by the broken quirks at all, it falls
> back on the standard apple_fn_keys[] translation.
> 
> Which is the *right* translation for me, and judging by your patch,
> it's the right translation for you too.

Correct. 
 
> So I suspect that the *right* thing to do is to just remove the broken
> WELLSPRING6 cases. Exactly the same way that da617c7cb915 ("HID:
> consolidate MacbookAir 4,1 mappings") did for the WELLSPRING6A ones.
> 
> So I suspect the only case that should use the "macbookair_fn_keys"
> thing is the *old* macbook air ("WELLSPRING4"). They were added in
> commit 5d922baa6310, and that commit implies that it was never tested
> all that much ("reportedly unchanged from the 3,2 predecessor and
> seems to work well.")
> 
> So I think the right patch is just this one:
> 
>      drivers/hid/hid-apple.c |    3 ---
>      1 files changed, 0 insertions(+), 3 deletions(-)
> 
>     diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
>     index 8cdb4b45b30a..299d23871122 100644
>     --- a/drivers/hid/hid-apple.c
>     +++ b/drivers/hid/hid-apple.c
>     @@ -183,9 +183,6 @@ static int hidinput_apple_event(struct
> hid_device *hid, struct input_dev *input,
>      		if (hid->product >= USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI &&
>      				hid->product <= USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS)
>      			table = macbookair_fn_keys;
>     -		else if (hid->product >= USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI &&
>     -				hid->product <= USB_DEVICE_ID_APPLE_WELLSPRING6_JIS)
>     -			table = macbookair_fn_keys;
>      		else if (hid->product < 0x21d || hid->product >= 0x300)
>      			table = powerbook_fn_keys;
>      		else
> 
> instead. Hmm? Does that work for you?

Tested-by: Dirk Hohndel <hohndel@...radead.org>

/D
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