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bdd1b147b8
linux/drivers/usb/core
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Johan Hovold bdd1b147b8 USB: quirks: blacklist duplicate ep on Sound Devices USBPre2 
This device has a broken vendor-specific altsetting for interface 1,
where endpoint 0x85 is declared as an isochronous endpoint despite being
used by interface 2 for audio capture.

Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x0926
  idProduct          0x0202
  bcdDevice            1.00
  iManufacturer           1 Sound Devices
  iProduct                2 USBPre2
  iSerial                 3 [...]
  bNumConfigurations      1

[...]

    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       3
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0126  1x 294 bytes
        bInterval               1

[...]

    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0
      iInterface              0
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           4
        bDelay                  1 frames
        wFormatTag         0x0001 PCM
      AudioStreaming Interface Descriptor:
        bLength                26
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             2
        bSubframeSize           2
        bBitResolution         16
        bSamFreqType            6 Discrete
        tSamFreq[ 0]         8000
        tSamFreq[ 1]        16000
        tSamFreq[ 2]        24000
        tSamFreq[ 3]        32000
        tSamFreq[ 4]        44100
        tSamFreq[ 5]        48000
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0126  1x 294 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         2 Decoded PCM samples
          wLockDelay         0x0000

Since commit 3e4f8e21c4 ("USB: core: fix check for duplicate
endpoints") USB core ignores any duplicate endpoints found during
descriptor parsing, but in this case we need to ignore the first
instance in order to avoid breaking the audio capture interface.

Fixes: 3e4f8e21c4 ("USB: core: fix check for duplicate endpoints")
Cc: stable <stable@vger.kernel.org>
Reported-by: edes <edes@gmx.net>
Tested-by: edes <edes@gmx.net>
Link: https://lore.kernel.org/r/20200201105829.5682c887@acme7.acmenet
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20200203153830.26394-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-10 11:14:22 -08:00
..
buffer.c usb: add a hcd_uses_dma helper 2019-08-15 15:18:05 +02:00
config.c USB: core: add endpoint-blacklist quirk 2020-02-10 11:14:22 -08:00
devices.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
devio.c USB: usbfs: Always unlink URBs in reverse order 2020-01-17 17:57:04 +01:00
driver.c USB: add support for dev_groups to struct usb_device_driver 2019-08-07 14:05:04 +02:00
endpoint.c
file.c USB: core: Fix races in character device registration and deregistraion 2019-08-12 22:47:24 +02:00
generic.c usbfs: Add ioctls for runtime power management 2019-08-09 07:55:45 +02:00
hcd-pci.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
hcd.c USB: Fix incorrect DMA allocations for local memory pool drivers 2019-12-11 09:06:41 +01:00
hub.c USB: hub: Don't record a connect-change event during reset-resume 2020-02-10 11:08:30 -08:00
hub.h USB: hub: Fix the broken detection of USB3 device in SMSC hub 2020-02-10 11:08:26 -08:00
Kconfig usb: remove redundant 'default n' from Kconfig-s 2019-05-21 10:06:22 +02:00
ledtrig-usbport.c USB: leds: fix regression in usbport led trigger 2019-01-18 09:55:05 +01:00
Makefile usb: core: add a wrapper for the USB PHYs on the HCD 2018-03-09 09:43:53 -08:00
message.c USB: CDC: fix sanity checks in CDC union parser 2019-08-15 14:49:16 +02:00
notify.c USB: core: Remove usbfs_mutex 2019-06-26 10:28:09 +08:00
of.c usb: Change usb_of_get_companion_dev() place to usb/common 2018-09-10 20:40:29 +02:00
otg_whitelist.h
phy.c usb: core: phy: add support for PHY calibration 2019-09-03 15:54:55 +02:00
phy.h usb: core: phy: add support for PHY calibration 2019-09-03 15:54:55 +02:00
port.c USB: Disable USB2 LPM at shutdown 2019-08-05 17:19:46 +02:00
quirks.c USB: quirks: blacklist duplicate ep on Sound Devices USBPre2 2020-02-10 11:14:22 -08:00
sysfs.c usb: setup authorized_default attributes using usb_bus_notify 2019-08-08 16:07:34 +02:00
urb.c usb: core: urb: fix URB structure initialization function 2019-12-10 11:41:19 +01:00
usb-acpi.c usb: assign ACPI companions for embedded USB devices 2019-01-25 08:46:26 +01:00
usb.c usb: remove commented out dma wrappers 2019-09-03 15:26:12 +02:00
usb.h USB: core: add endpoint-blacklist quirk 2020-02-10 11:14:22 -08:00