All normal devices that correctly conform to the HID specs are handled by
the hid-input driver. However, for non-standard drivers we often don't
want hid-input to handle them but rather use specific hid drivers. But
hid_connect() requires at least one generic driver to claim the devices.
As hid_hw_start() calls hid_connect() we currently use an ugly workaround
by adding HID_CLAIMED_INPUT to hid->claimed and clear it after
hid_hw_start() again (see hid-picolcd.c for examples).
This adds the HID_CLAIMED_OTHER flag which can be set by device drivers to
tell the hid-core that they handle the device without the need of any
generic driver like hidinput, hiddev or hidraw.
Signed-off-by: David Herrmann <dh.herrmann@xxxxxxxxxxxxxx>
---
drivers/hid/hid-core.c | 2 ++
include/linux/hid.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 9cdc74e..2039f32 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1391,6 +1391,8 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
if (hdev->claimed & HID_CLAIMED_HIDRAW)
len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
((struct hidraw *)hdev->hidraw)->minor);
+ if (hdev->claimed & HID_CLAIMED_OTHER)
+ len += sprintf(buf + len, "%sother", len ? "," : "");
type = "Device";
for (i = 0; i < hdev->maxcollection; i++) {
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 449fa38..26b336a 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -452,6 +452,7 @@ struct hid_output_fifo {
#define HID_CLAIMED_INPUT 1
#define HID_CLAIMED_HIDDEV 2
#define HID_CLAIMED_HIDRAW 4
+#define HID_CLAIMED_OTHER 8
#define HID_STAT_ADDED 1
#define HID_STAT_PARSED 2
--
1.7.11.2
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
