From: Olivier Gay Date: Mon, 2 Dec 2013 23:17:24 +0000 (+0100) Subject: HID: logitech-dj: add HIDRAW dependency in Kconfig X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=dcdc50e72b8b8c21aca598705192dcbf96f4fb64;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git HID: logitech-dj: add HIDRAW dependency in Kconfig hid-logitech-dj.c driver needs hidraw to work correctly. Without hidraw, hid-logitech-dj.c fails during probe() and Logitech Unifying devices HID reports aren't recognized. The unifying receiver has 3 usb interfaces. When hid-logitech-dj driver is loaded, interfaces 0 and 1 are discarded. Interface 2 consists of a hid class interface with 3 collections, each of which sports the 'vendor' usage, thus, there is no reason for hid_input to claim any of them. On the other hand, hidraw has no issue in claiming the collections, even if they are 'vendor'. As of today, hid-logitech-dj uses hidraw api to send configuration/control reports to interface 2 of the Unifying receiver. Without the hid-logitech-dj driver, interfaces 0 and 1 are claimed by hid-input, as they correspond to a keyboard and a mouse. But that is not relevant to the discussion. [jkosina@suse.cz: make the changelog more verbose, thanks to Nestor] Signed-off-by: Olivier Gay Signed-off-by: Nestor Lopez Casado Signed-off-by: Mathieu Meisser Signed-off-by: Jiri Kosina --- diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 329fbb9b5976..c8a66b94b6dd 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -344,6 +344,7 @@ config HID_LOGITECH config HID_LOGITECH_DJ tristate "Logitech Unifying receivers full support" + depends on HIDRAW depends on HID_LOGITECH ---help--- Say Y if you want support for Logitech Unifying receivers and devices.