From 2fa299a917adb2db2d486b9e4a3072865ce70a03 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Wed, 22 Feb 2017 01:13:52 +0100 Subject: [PATCH] HID: rmi: fallback to generic/multitouch if hid-rmi is not built Commit 279967a65b32 ("HID: rmi: Handle all Synaptics touchpads using hid-rmi") unconditionally switches over handling of all Synaptics touchpads to hid-rmi (to make use of extended features of the HW); in case CONFIG_HID_RMI is disabled though this renders the touchpad unusable, as the HID_DEVICE(HID_BUS_ANY, HID_GROUP_RMI, HID_ANY_ID, HID_ANY_ID) match doesn't exist and generic/multitouch doesn't bind to it either (due to hid group mismatch). Fix this by switching over to hid-rmi only if it has been actually built. Fixes: 279967a65b32 ("HID: rmi: Handle all Synaptics touchpads using hid-rmi") Reported-by: Linus Torvalds Acked-by: Benjamin Tissoires Tested-by: Andrew Duggan Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 538ff697a4cf..e9e87d337446 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -827,7 +827,8 @@ static int hid_scan_report(struct hid_device *hid) * hid-rmi should take care of them, * not hid-generic */ - hid->group = HID_GROUP_RMI; + if (IS_ENABLED(CONFIG_HID_RMI)) + hid->group = HID_GROUP_RMI; break; } -- 2.20.1