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Logitech K400r: disable Fn swap.

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This commit is contained in:
Sorgelig
2021-08-19 03:52:11 +08:00
parent 1f16a1d3de
commit 7df8dfc072
1 changed files with 40 additions and 0 deletions
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40
drivers/hid/hid-logitech-hidpp.c
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@@ -3057,6 +3057,44 @@ static int k400_disable_tap_to_click(struct hidpp_device *hidpp)
return 0;
}
#define FEATURE_FN_INVERSION 0x40A0
#define FEATURE_NEW_FN_INVERSION 0x40A2
static int hidpp_fn_set(struct hidpp_device *hidpp, u8 feature_index, u8 enable)
{
struct hidpp_report response;
int ret;
ret = hidpp_send_fap_command_sync(hidpp, feature_index, 0x10, &enable, 1, &response);
if (ret > 0)
{
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
return ret;
}
static int k400_enable_Fn(struct hidpp_device *hidpp)
{
struct k400_private_data *k400 = hidpp->private_data;
int ret;
u8 feature_type;
if (!k400->feature_index) {
ret = hidpp_root_get_feature(hidpp,
FEATURE_NEW_FN_INVERSION,
&k400->feature_index, &feature_type);
if (ret)
/* means that the device is not powered up */
return ret;
}
return hidpp_fn_set(hidpp, k400->feature_index, 0);
}
static int k400_allocate(struct hid_device *hdev)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
@@ -3076,6 +3114,8 @@ static int k400_connect(struct hid_device *hdev, bool connected)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
k400_enable_Fn(hidpp);
if (!disable_tap_to_click)
return 0;