diff options
| author | Olivier Gay <ogay@logitech.com> | 2013-12-03 03:17:24 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-12-03 18:19:47 +0400 |
| commit | dcdc50e72b8b8c21aca598705192dcbf96f4fb64 (patch) | |
| tree | a6b58a500321811eceb82a8520c24a818c043d14 /drivers/hid | |
| parent | 56d0c8b7c8fb63505a06b50364d12817ded88daa (diff) | |
| download | linux-dcdc50e72b8b8c21aca598705192dcbf96f4fb64.tar.xz | |
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 <ogay@logitech.com>
Signed-off-by: Nestor Lopez Casado <nlopezcasad@logitech.com>
Signed-off-by: Mathieu Meisser <mmeisser@logitech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
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. |