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HID: apple: Add GANSS GS3104T PRO to the non-Apple keyboard list

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The GANSS GS3104T PRO is a tri-mode mechanical keyboard that reports
Apple's vendor and product IDs (05ac:024f) over USB, over its 2.4 GHz
receiver and over Bluetooth, so that macOS recognises it without a
vendor driver.  hid->name is built from the product string only and it
differs per connection mode:

  USB:        "HFD GS3104T PRO"   (iManufacturer is "HFD")
  2.4 GHz:    "GS3104T-PRO 2.4G"  (no iManufacturer)
  Bluetooth:  "GS3104T PRO"

All three descriptors carry the Apple Fn key usage (Usage Page 0xFF00,
Usage 0x03), so hid-apple claims the device in every mode and applies
the Apple function key layout: with the default fnmode=3,
hidinput_apple_event() resolves real_fnmode to 1 (fkeyslast), so the
F-row sends the media keys and Fn has to be held down to get F1-F12.
That is not the behaviour the keyboard has on other operating systems.

hid-apple already keeps a list of such keyboards and switches them to
the fnmode=2 (fkeysfirst) behaviour, but the match is a case-sensitive
strncmp() prefix test against hid->name and none of the three names
matches an existing entry: the "GANSS" one misses because the brand does
not appear in any of the descriptors, and "hfd.cn" does not match
either.  The non-Apple handling is thus never enabled and users have to
pass hid_apple.fnmode=2 on the kernel command line to get the expected
default.

Add all three names to non_apple_keyboards[].

Signed-off-by: DemonPlayer <a18165943161@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
DemonPlayer 2026-10-04 00:15:08 +08:00 committed by Jiri Kosina
parent 337cf8a2df
commit 0eda44edbc
1 changed files with 3 additions and 0 deletions
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3
drivers/hid/hid-apple.c
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@ -373,6 +373,9 @@ static const struct apple_non_apple_keyboard non_apple_keyboards[] = {
{ "2.4G Wireless Receiver" }, /* EPOMAKER TH87 dongle */
{ "Thock TKL Wireless" }, /* ENDORFY THOCK TKL BT mode */
{ "USB Dongle" }, /* ENDORFY THOCK TKL dongle */
{ "HFD GS3104T PRO" }, /* GANSS GS3104T PRO USB mode */
{ "GS3104T-PRO 2.4G" }, /* GANSS GS3104T PRO 2.4G dongle */
{ "GS3104T PRO" }, /* GANSS GS3104T PRO Bluetooth */
};
static bool apple_is_non_apple_keyboard(struct hid_device *hdev)