From: Andrew de los Reyes <adlr@xxxxxxxxxxxx>
Historically, logitech-dj communicated with the device during probe()
to query the list of devices attached. Later, a change was introduced
to hid-core that prevented incoming packets for a device during
probe(), as many drivers are unable to handle such input. That change
broke the device enumeration in logitech-dj, so commit
596264082f10dd4a56 was introduced to workaround that by waiting for
normal input before enumerating devices.
Now that drivers can opt-in to receive input during probe, this patch
changes logitech-dj to do that, so that it can successfully complete
enumeration of devices during probe().
Signed-off-by: Andrew de los Reyes <adlr@xxxxxxxxxxxx>
Change-Id: I2dca10a5c64f6c3e90ffb00547b47eaf94546eb6
---
drivers/hid/hid-logitech-dj.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 9500f2f..bf647ef 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -803,6 +803,9 @@ static int logi_dj_probe(struct hid_device *hdev,
goto llopen_failed;
}
+ /* Allow incoming packets to arrive: */
+ hid_device_io_start(hdev);
+
retval = logi_dj_recv_query_paired_devices(djrcv_dev);
if (retval < 0) {
dev_err(&hdev->dev, "%s:logi_dj_recv_query_paired_devices "
--
1.8.1.3
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