RE: [PATCH 2/2] HID: alps: Refactor axis resolution logic

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Hi Jiri,

It's my pleasure. 
The latest modification is suitable now.


Best Regards,
----------------------------------------------
Jason Cao(曹晓建)


-----Original Message-----
From: Jiri Kosina <jikos@xxxxxxxxxx> 
Sent: Wednesday, April 15, 2020 8:55 PM
To: 曹 曉建 Xiaojian Cao <xiaojian.cao@xxxxxxxxxxx>
Cc: Artem Borisov <dedsa2002@xxxxxxxxx>; 太田 真喜 Masaki Ota <masaki.ota@xxxxxxxxxxxxxx>; Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>; Henrik Rydberg <rydberg@xxxxxxxxxxx>; linux-input@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; 野村 哲哉 Tetsuya Nomura <tetsuya.nomura@xxxxxxxxxxxxxx>; Vadim Klishko <vadim@xxxxxxxxxx>; #ALCHT_ML_POD_CN <pod.alcht@xxxxxxxxxxx>
Subject: RE: [PATCH 2/2] HID: alps: Refactor axis resolution logic

On Wed, 15 Apr 2020, Xiaojian Cao wrote:

> Thanks for your checking, my feedbacks are as below:
>
> 1.It is about the coding style that we should not use HWID in the 
> string "HID_DEVICE_ID_ALPS_1657", there are a large number of HWIDs 
> using this touchpad. We should use the device type information in this 
> string, such as "U1_UNICORN_LEGACY".

Ok, thanks for the feedback. Based on it, I am queuing the patch below.

HID_DEVICE_ID_ALPS_1657 PID is too specific, as there are many other ALPS hardware IDs using this particular touchpad.

Rename the identifier to HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY in order to describe reality better.

Fixes: 640e403b1fd24 ("HID: alps: Add AUI1657 device ID")
Reported-by: Xiaojian Cao <xiaojian.cao@xxxxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
---
 drivers/hid/hid-alps.c | 2 +-
 drivers/hid/hid-ids.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c index c2a2bd528890..b2ad319a74b9 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -802,7 +802,7 @@ static int alps_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		break;
 	case HID_DEVICE_ID_ALPS_U1_DUAL:
 	case HID_DEVICE_ID_ALPS_U1:
-	case HID_DEVICE_ID_ALPS_1657:
+	case HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY:
 		data->dev_type = U1;
 		break;
 	default:
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index e3e2fa6733fb..6eb25b9e8575 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -79,9 +79,9 @@
 #define HID_DEVICE_ID_ALPS_U1_DUAL_PTP	0x121F
 #define HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP	0x1220
 #define HID_DEVICE_ID_ALPS_U1		0x1215
+#define HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY         0x121E
 #define HID_DEVICE_ID_ALPS_T4_BTNLESS	0x120C
 #define HID_DEVICE_ID_ALPS_1222		0x1222
-#define HID_DEVICE_ID_ALPS_1657         0x121E
 
 #define USB_VENDOR_ID_AMI		0x046b
 #define USB_DEVICE_ID_AMI_VIRT_KEYBOARD_AND_MOUSE	0xff10


--
Jiri Kosina
SUSE Labs





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