The paths of sysfs nodes are different on multiple build targets and are
also different between the old kernel (5.10) and newer kernel (6.1).
Since usb HAL code is shared by those targets and different kernel
versions, Runtime search the correct paths.
Bug: 317946158
Change-Id: I676455145232fd71db1578bb7a9801fed7bb327f
Signed-off-by: Kyle Tso <kyletso@google.com>
Indicate to the kernel that the usb gadget is pulled up
by writing to `update_sdp_enum_timeout` sysfs node. Write
to this node will inform the kernel that it can lower the SDP
timeout alarm value which is used to detect an SDP port
vs a DCP.
Bug:275687235
Test: Check `update_sdp_enum_timeout` is written into after usb
gadget is pulled up. Verify that the alarm timeout lowers.
Change-Id: Id3ae7e7a20b236cec6604414a7f81860e868bdd0
Signed-off-by: Amit Sunil Dhamne <amitsd@google.com>
This change migrates IUsbGadget implementation to AIDL.
Port of commit <d6d0b7d2ca5066988ee90889dccd00c06d64b694>.
Bug: 218791946
Test: USB function switch success and AIDL service is running.
Change-Id: I9613178d3cd2f9abd5396e4af763a257a8ef62a7
For imporve USB stability, limit the current to 1.3A,
when connect to accessory.
Bug: 206635552
Signed-off-by: Ricky Niu <rickyniu@google.com>
Change-Id: I2c1091aa7111e6242cc949923fbc86f27e54e976
Since affinity permission is changed from root to system, original
permission change by script can't be used. Therefore, this patch
will move the functionality to usb gadget hal.
Bug: 220996010
Test: dwc3 irq could be located in medium/big cores after USB function switch
Change-Id: Id993db9fc303e85a9a6337a0e41b1dfd6fc9a86a
Cherry-pick of <775523d1eb>
This change migrates IUsb implementation to AIDL.
Also, IUsb and IUsbGadget now run in its own processes
to improve stability and isolation.
Bug: 200993386
Change-Id: I02753af4a41916b77ce110f9531504bf8c6a4691
Merged-In: I02753af4a41916b77ce110f9531504bf8c6a4691
