After USB enumeration, some SD card readers do not send signals to the
device when the SD card is inserted or removed.
To support SD card hotplugging, this patch enables in-kernel
media-presence polling, which will check the SD card status every 2
seconds after a SD card reader is attached.
Bug: 186479576
Test: SD card insertion/removal and data copy (see b/301566595)
Change-Id: I044aeffd9386c0bee6138402e5130c39e1adbc9f
Signed-off-by: Kuen-Han Tsai <khtsai@google.com>
Many host applications expect and ask for lower resolution streams when
streaming from a USB webcam. To support those applications, this CL
adds support for 640x480 and 640x360 streams.
Bug: 301170431
Test: Manually tested that the resolution is advertised and streamed.
Change-Id: Ifda2322747fced10c164afa98420fd35b17dbdd1
Write to /sys/class/typec/port<...>/device/update_sdp_enum_timeout
to reduce SDP enumeration timeout value when device is in charger
mode. This will enable faster detection of a DCP port.
ported from 6710e31a629f81cf308e1099f75a01c82db6d006
Test: Validate (in charger mode) that the sysfs attribute is 1
(meaning lower sdp timeout value is being used). Read dmesg to
see print showing timeout value is 5000ms.
Bug: 275687235
Change-Id: I1bc872911d7f1eab26e62fe6f12fba05608e0f83
Signed-off-by: Amit Sunil Dhamne <amitsd@google.com>
The UVC gadget requires some setup in configfs before it can be used by
the gadget HAL. This CL adds that setup to usb specific init.rc file.
Currently, UVC is setup to advertise mjpeg streams at 720p and 1080p.
Bug: 242344221
Test: Manually tested that UVC is correctly set up on boot.
Merged-In: I71cf4727fb23744c5aef368c1750784a19ba8c5d
Change-Id: I71cf4727fb23744c5aef368c1750784a19ba8c5d
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>
If the enumeration is too long, it may trigger the watchdog mechanism
to cause device reset. Therefore, this patch will modify the timeout.
Bug: 282876796
Test: build pass and the value is set to 500.
Change-Id: Ib54d8ff5a1e680fc86f2b89ee0d02d63ee5741d8
The change exposes persist.vendor.usb.displayport.enabled
to enable/disable USB-C Dp Alt Mode i.e. DisplayPort over USB-C.
By default persist.vendor.usb.displayport.enabled is to 0 in
user builds and 1 in all other build variants.
Bug: 277107943
Change-Id: I596d3af52f2a813f5f78c4f9b77b6ae3dd8a161b
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
bcdDevice will use the kernel version as default, so this patch will
remove it.
Bug: 260539020
Test: build pass
Change-Id: I2f51533e76775707b96cc13a6b29e5500b2ce4dd
