From 0b00583ecacb0b51712a5ecd34cf7e6684307c67 Mon Sep 17 00:00:00 2001
From: Ian Ray <ian.ray@gehealthcare.com>
Date: Wed, 14 Aug 2024 10:29:05 +0300
Subject: [PATCH] cdc-acm: Add DISABLE_ECHO quirk for GE HealthCare UI
Controller
USB_DEVICE(0x1901, 0x0006) may send data before cdc_acm is ready, which
may be misinterpreted in the default N_TTY line discipline.
Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
Acked-by: Oliver Neuku <oneukum@suse.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20240814072905.2501-1-ian.ray@gehealthcare.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/class/cdc-acm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 0e7439dba8fe8..0c1b69d944ca4 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1761,6 +1761,9 @@ static const struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0x11ca, 0x0201), /* VeriFone Mx870 Gadget Serial */
.driver_info = SINGLE_RX_URB,
},
+ { USB_DEVICE(0x1901, 0x0006), /* GE Healthcare Patient Monitor UI Controller */
+ .driver_info = DISABLE_ECHO, /* DISABLE ECHO in termios flag */
+ },
{ USB_DEVICE(0x1965, 0x0018), /* Uniden UBC125XLT */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
--
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