linux-kernel - [PATCH] usb: quirks: add NO_LPM quirk for Logitech Screen Share

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Date:   Wed, 26 Feb 2020 14:34:38 +0000
From:   Gustavo Padovan <gustavo.padovan@...labora.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com, Dan Lazewatsky <dlaz@...omium.org>,
        Gustavo Padovan <gustavo.padovan@...labora.com>
Subject: [PATCH] usb: quirks: add NO_LPM quirk for Logitech Screen Share

From: Dan Lazewatsky <dlaz@...omium.org>

LPM on the device appears to cause xHCI host controllers to claim
that there isn't enough bandwidth to support additional devices.

Signed-off-by: Dan Lazewatsky <dlaz@...omium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@...labora.com>
---
 drivers/usb/core/quirks.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 2b24336a72e5..2dac3e7cdd97 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -231,6 +231,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* Logitech PTZ Pro Camera */
 	{ USB_DEVICE(0x046d, 0x0853), .driver_info = USB_QUIRK_DELAY_INIT },
 
+	/* Logitech Screen Share */
+	{ USB_DEVICE(0x046d, 0x086c), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Logitech Quickcam Fusion */
 	{ USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME },
 
-- 
2.11.0