Commit 4d8654e8 authored by Yorick de Wid's avatar Yorick de Wid Committed by Greg Kroah-Hartman

Goodix Fingerprint device is not a modem

The CDC ACM driver is false matching the Goodix Fingerprint device
against the USB_CDC_ACM_PROTO_AT_V25TER.

The Goodix Fingerprint device is a biometrics sensor that should be
handled in user-space. libfprint has some support for Goodix
fingerprint sensors, although not for this particular one. It is
possible that the vendor allocates a PID per OEM (Lenovo, Dell etc).
If this happens to be the case then more devices from the same vendor
could potentially match the ACM modem module table.
Signed-off-by: default avatarYorick de Wid <ydewid@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210213144901.53199-1-ydewid@gmail.comSigned-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a38fd874
...@@ -1935,6 +1935,11 @@ static const struct usb_device_id acm_ids[] = { ...@@ -1935,6 +1935,11 @@ static const struct usb_device_id acm_ids[] = {
.driver_info = SEND_ZERO_PACKET, .driver_info = SEND_ZERO_PACKET,
}, },
/* Exclude Goodix Fingerprint Reader */
{ USB_DEVICE(0x27c6, 0x5395),
.driver_info = IGNORE_DEVICE,
},
/* control interfaces without any protocol set */ /* control interfaces without any protocol set */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
USB_CDC_PROTO_NONE) }, USB_CDC_PROTO_NONE) },
......
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