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| author | Johan Hovold <johan@kernel.org> | 2020-02-03 16:38:28 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-10 20:14:22 +0100 |
| commit | 73f8bda9b5dc1c69df2bc55c0cbb24461a6391a9 (patch) | |
| tree | 322a38a4d51b138cadb84fc659a755ee8a3b8525 /include | |
| parent | usb: dwc3: debug: fix string position formatting mixup with ret and len (diff) | |
| download | linux-73f8bda9b5dc1c69df2bc55c0cbb24461a6391a9.tar.xz linux-73f8bda9b5dc1c69df2bc55c0cbb24461a6391a9.zip | |
USB: core: add endpoint-blacklist quirk
Add a new device quirk that can be used to blacklist endpoints.
Since commit 3e4f8e21c4f2 ("USB: core: fix check for duplicate
endpoints") USB core ignores any duplicate endpoints found during
descriptor parsing.
In order to handle devices where the first interfaces with duplicate
endpoints are the ones that should have their endpoints ignored, we need
to add a blacklist.
Tested-by: edes <edes@gmx.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20200203153830.26394-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/quirks.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h index a1be64c9940f..22c1f579afe3 100644 --- a/include/linux/usb/quirks.h +++ b/include/linux/usb/quirks.h @@ -69,4 +69,7 @@ /* Hub needs extra delay after resetting its port. */ #define USB_QUIRK_HUB_SLOW_RESET BIT(14) +/* device has blacklisted endpoints */ +#define USB_QUIRK_ENDPOINT_BLACKLIST BIT(15) + #endif /* __LINUX_USB_QUIRKS_H */ |