linux-kernel - [PATCH 4.9 01/52] usb: cdc_acm: Add quirk for Uniden UBC125 scanner

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Date:   Tue, 10 Jul 2018 20:24:29 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Houston Yaroschoff <hstn@...er3.net>,
        Oliver Neukum <oneukum@...e.com>
Subject: [PATCH 4.9 01/52] usb: cdc_acm: Add quirk for Uniden UBC125 scanner

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Houston Yaroschoff <hstn@...er3.net>

commit 4a762569a2722b8a48066c7bacf0e1dc67d17fa1 upstream.

Uniden UBC125 radio scanner has USB interface which fails to work
with cdc_acm driver:
  usb 1-1.5: new full-speed USB device number 4 using xhci_hcd
  cdc_acm 1-1.5:1.0: Zero length descriptor references
  cdc_acm: probe of 1-1.5:1.0 failed with error -22

Adding the NO_UNION_NORMAL quirk for the device fixes the issue:
  usb 1-4: new full-speed USB device number 15 using xhci_hcd
  usb 1-4: New USB device found, idVendor=1965, idProduct=0018
  usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
  usb 1-4: Product: UBC125XLT
  usb 1-4: Manufacturer: Uniden Corp.
  usb 1-4: SerialNumber: 0001
  cdc_acm 1-4:1.0: ttyACM0: USB ACM device

`lsusb -v` of the device:

  Bus 001 Device 015: ID 1965:0018 Uniden Corporation
  Device Descriptor:
    bLength                18
    bDescriptorType         1
    bcdUSB               2.00
    bDeviceClass            2 Communications
    bDeviceSubClass         0
    bDeviceProtocol         0
    bMaxPacketSize0        64
    idVendor           0x1965 Uniden Corporation
    idProduct          0x0018
    bcdDevice            0.01
    iManufacturer           1 Uniden Corp.
    iProduct                2 UBC125XLT
    iSerial                 3 0001
    bNumConfigurations      1
    Configuration Descriptor:
      bLength                 9
      bDescriptorType         2
      wTotalLength           48
      bNumInterfaces          2
      bConfigurationValue     1
      iConfiguration          0
      bmAttributes         0x80
        (Bus Powered)
      MaxPower              500mA
      Interface Descriptor:
        bLength                 9
        bDescriptorType         4
        bInterfaceNumber        0
        bAlternateSetting       0
        bNumEndpoints           1
        bInterfaceClass         2 Communications
        bInterfaceSubClass      2 Abstract (modem)
        bInterfaceProtocol      0 None
        iInterface              0
        Endpoint Descriptor:
          bLength                 7
          bDescriptorType         5
          bEndpointAddress     0x87  EP 7 IN
          bmAttributes            3
            Transfer Type            Interrupt
            Synch Type               None
            Usage Type               Data
          wMaxPacketSize     0x0008  1x 8 bytes
          bInterval              10
      Interface Descriptor:
        bLength                 9
        bDescriptorType         4
        bInterfaceNumber        1
        bAlternateSetting       0
        bNumEndpoints           2
        bInterfaceClass        10 CDC Data
        bInterfaceSubClass      0 Unused
        bInterfaceProtocol      0
        iInterface              0
        Endpoint Descriptor:
          bLength                 7
          bDescriptorType         5
          bEndpointAddress     0x81  EP 1 IN
          bmAttributes            2
            Transfer Type            Bulk
            Synch Type               None
            Usage Type               Data
          wMaxPacketSize     0x0040  1x 64 bytes
          bInterval               0
        Endpoint Descriptor:
          bLength                 7
          bDescriptorType         5
          bEndpointAddress     0x02  EP 2 OUT
          bmAttributes            2
            Transfer Type            Bulk
            Synch Type               None
            Usage Type               Data
          wMaxPacketSize     0x0040  1x 64 bytes
          bInterval               0
  Device Status:     0x0000
    (Bus Powered)

Signed-off-by: Houston Yaroschoff <hstn@...er3.net>
Cc: stable <stable@...r.kernel.org>
Acked-by: Oliver Neukum <oneukum@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/class/cdc-acm.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1712,6 +1712,9 @@ static const struct usb_device_id acm_id
 	{ USB_DEVICE(0x11ca, 0x0201), /* VeriFone Mx870 Gadget Serial */
 	.driver_info = SINGLE_RX_URB,
 	},
+	{ USB_DEVICE(0x1965, 0x0018), /* Uniden UBC125XLT */
+	.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
+	},
 	{ USB_DEVICE(0x22b8, 0x7000), /* Motorola Q Phone */
 	.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
 	},