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patch "usb: quirks: add NO_LPM quirk for Logitech Screen Share" added to usb-linus

PATCH [email protected] 1 participant 1 message Mar 4, 2020

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This is a note to let you know that I've just added the patch titled

usb: quirks: add NO_LPM quirk for Logitech Screen Share

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From b96ed52d781a2026d0c0daa5787c6f3d45415862 Mon Sep 17 00:00:00 2001
From: Dan Lazewatsky <[email protected]>
Date: Wed, 26 Feb 2020 14:34:38 +0000
Subject: usb: quirks: add NO_LPM quirk for Logitech Screen Share

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

---
 drivers/usb/core/quirks.c | 3 +++
 1 file changed, 3 insertions(+)
drivers/usb/core/quirks.c +3 -0
index 2b24336a72e5..2dac3e7cdd97 100644
@@ -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 },
 
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