2022-03-17 06:39:23

by Josh Kilmer

Subject: [PATCH] hid: asus: ROG NKey: Ignore portion of 0x5a report

On an Asus G513QY, of the 5 bytes in a 0x5a report, only the first byte
is a meaningful keycode. The other bytes are zeroed out or hold garbage
from the last packet sent to the keyboard.

This patch fixes up the report descriptor for this event so that the
general hid code will only process 1 byte for keycodes, avoiding
spurious key events and unmapped Asus vendor usagepage code warnings.

Signed-off-by: Josh Kilmer <[email protected]>
---
drivers/hid/hid-asus.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 08c9a9a60ae4..73fb9fc0701c 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -1212,6 +1212,14 @@ static __u8 *asus_report_fixup(struct
hid_device *hdev, __u8 *rdesc,
rdesc = new_rdesc;
}

+ if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
+ *rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a &&
+ rdesc[204] == 0x95 && rdesc[205] == 0x05) {
+ hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n");
+ // On the 0x5A input report, change count from 5 to 1
+ rdesc[205] = 0x01;
+ }
+
return rdesc;
}

--
2.35.1

2022-04-12 18:20:46

by Jiri Kosina

Subject: Re: [PATCH] hid: asus: ROG NKey: Ignore portion of 0x5a report

On Mon, 14 Mar 2022, Josh Kilmer wrote:

> On an Asus G513QY, of the 5 bytes in a 0x5a report, only the first byte
> is a meaningful keycode. The other bytes are zeroed out or hold garbage
> from the last packet sent to the keyboard.
>
> This patch fixes up the report descriptor for this event so that the
> general hid code will only process 1 byte for keycodes, avoiding
> spurious key events and unmapped Asus vendor usagepage code warnings.
>
> Signed-off-by: Josh Kilmer <[email protected]>

Hi Josh,

thanks for the patch.

A couple remarks:

> ---
> drivers/hid/hid-asus.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
> index 08c9a9a60ae4..73fb9fc0701c 100644
> --- a/drivers/hid/hid-asus.c
> +++ b/drivers/hid/hid-asus.c
> @@ -1212,6 +1212,14 @@ static __u8 *asus_report_fixup(struct
> hid_device *hdev, __u8 *rdesc,
> rdesc = new_rdesc;
> }
>
> + if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
> + *rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a &&
> + rdesc[204] == 0x95 && rdesc[205] == 0x05) {
> + hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n");
> + // On the 0x5A input report, change count from 5 to 1
> + rdesc[205] = 0x01;
> + }

- your mail client whitespace-damaged the patch, so it can't be applied;
could you please fix that and resend?

- the comment above is (a) using non-standard kernel commenting style, and
quite honestly (b) seems a little bit superfluous

Could you please fix that up and resend?

Thanks,

--
Jiri Kosina
SUSE Labs

2022-04-16 01:23:35

by Josh Kilmer

Subject: [PATCH v2] hid: asus: ROG NKey: Ignore portion of 0x5a report

On an Asus G513QY, of the 5 bytes in a 0x5a report, only the first byte
is a meaningful keycode. The other bytes are zeroed out or hold garbage
from the last packet sent to the keyboard.

This patch fixes up the report descriptor for this event so that the
general hid code will only process 1 byte for keycodes, avoiding
spurious key events and unmapped Asus vendor usagepage code warnings.

Signed-off-by: Josh Kilmer <[email protected]>
---
drivers/hid/hid-asus.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 08c9a9a60ae4..b59c3dafa6a4 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -1212,6 +1212,13 @@ static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
rdesc = new_rdesc;
}

+ if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
+ *rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a &&
+ rdesc[204] == 0x95 && rdesc[205] == 0x05) {
+ hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n");
+ rdesc[205] = 0x01;
+ }
+
return rdesc;
}

--
2.35.1

2022-07-28 18:02:47

by Josh Kilmer

Subject: [PATCH v2 RESEND] hid: asus: ROG NKey: Ignore portion of 0x5a report

On an Asus G513QY, of the 5 bytes in a 0x5a report, only the first byte
is a meaningful keycode. The other bytes are zeroed out or hold garbage
from the last packet sent to the keyboard.

This patch fixes up the report descriptor for this event so that the
general hid code will only process 1 byte for keycodes, avoiding
spurious key events and unmapped Asus vendor usagepage code warnings.

Signed-off-by: Josh Kilmer <[email protected]>
---
drivers/hid/hid-asus.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 08c9a9a60ae4..b59c3dafa6a4 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -1212,6 +1212,13 @@ static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
rdesc = new_rdesc;
}

+ if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
+ *rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a &&
+ rdesc[204] == 0x95 && rdesc[205] == 0x05) {
+ hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n");
+ rdesc[205] = 0x01;
+ }
+
return rdesc;
}

--
2.35.1

2022-08-25 10:12:01

by Jiri Kosina

Subject: Re: [PATCH v2 RESEND] hid: asus: ROG NKey: Ignore portion of 0x5a report

On Thu, 28 Jul 2022, Josh Kilmer wrote:

> On an Asus G513QY, of the 5 bytes in a 0x5a report, only the first byte
> is a meaningful keycode. The other bytes are zeroed out or hold garbage
> from the last packet sent to the keyboard.
>
> This patch fixes up the report descriptor for this event so that the
> general hid code will only process 1 byte for keycodes, avoiding
> spurious key events and unmapped Asus vendor usagepage code warnings.
>
> Signed-off-by: Josh Kilmer <[email protected]>
> ---
> drivers/hid/hid-asus.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
> index 08c9a9a60ae4..b59c3dafa6a4 100644
> --- a/drivers/hid/hid-asus.c
> +++ b/drivers/hid/hid-asus.c
> @@ -1212,6 +1212,13 @@ static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
> rdesc = new_rdesc;
> }
>
> + if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
> + *rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a &&
> + rdesc[204] == 0x95 && rdesc[205] == 0x05) {
> + hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n");
> + rdesc[205] = 0x01;
> + }
> +

Applied, thanks.

--
Jiri Kosina
SUSE Labs