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authorTomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>2025-02-01 12:38:51 +0100
committerJiri Kosina <jkosina@suse.com>2025-02-03 15:16:56 +0100
commit36de0164bbaff1484288e84ac5df5cff00580263 (patch)
tree399a0991c7b7db39feda9a166a63e255c0f31119
parenta4119108d2530747e61c7cbf52e2affd089cb1f6 (diff)
HID: pidff: Add hid_pidff_init_with_quirks and export as GPL symbol
This lays out a way to provide an initial set of quirks to enable before device initialization takes place. GPL symbol export needed for the possibility of building HID drivers which use this function as modules. Adding a wrapper function to ensure compatibility with the old behavior of hid_pidff_init. Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com> Reviewed-by: Michał Kopeć <michal@nozomi.space> Reviewed-by: Paul Dino Jones <paul@spacefreak18.xyz> Tested-by: Paul Dino Jones <paul@spacefreak18.xyz> Tested-by: Cristóferson Bueno <cbueno81@gmail.com> Tested-by: Pablo Cisneros <patchkez@protonmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
-rw-r--r--drivers/hid/usbhid/hid-pidff.c15
-rw-r--r--include/linux/hid.h2
2 files changed, 16 insertions, 1 deletions
diff --git a/drivers/hid/usbhid/hid-pidff.c b/drivers/hid/usbhid/hid-pidff.c
index 3f429936d537..298a971c63fd 100644
--- a/drivers/hid/usbhid/hid-pidff.c
+++ b/drivers/hid/usbhid/hid-pidff.c
@@ -1281,8 +1281,9 @@ static int pidff_check_autocenter(struct pidff_device *pidff,
/*
* Check if the device is PID and initialize it
+ * Set initial quirks
*/
-int hid_pidff_init(struct hid_device *hid)
+int hid_pidff_init_with_quirks(struct hid_device *hid, __u32 initial_quirks)
{
struct pidff_device *pidff;
struct hid_input *hidinput = list_entry(hid->inputs.next,
@@ -1304,6 +1305,7 @@ int hid_pidff_init(struct hid_device *hid)
return -ENOMEM;
pidff->hid = hid;
+ pidff->quirks = initial_quirks;
hid_device_io_start(hid);
@@ -1382,3 +1384,14 @@ int hid_pidff_init(struct hid_device *hid)
kfree(pidff);
return error;
}
+EXPORT_SYMBOL_GPL(hid_pidff_init_with_quirks);
+
+/*
+ * Check if the device is PID and initialize it
+ * Wrapper made to keep the compatibility with old
+ * init function
+ */
+int hid_pidff_init(struct hid_device *hid)
+{
+ return hid_pidff_init_with_quirks(hid, 0);
+}
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 89a4dee37729..31dfe9ed5394 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -1224,8 +1224,10 @@ void hid_quirks_exit(__u16 bus);
#ifdef CONFIG_HID_PID
int hid_pidff_init(struct hid_device *hid);
+int hid_pidff_init_with_quirks(struct hid_device *hid, __u32 initial_quirks);
#else
#define hid_pidff_init NULL
+#define hid_pidff_init_with_quirks NULL
#endif
/* HID PIDFF quirks */