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Camera: clarify external camera device ID requirements

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Bug: 64874137
Change-Id: Ibf45a0077952d2ec42cdef80659a019b6d24051f
This commit is contained in:
Yin-Chia Yeh
2018-02-12 14:13:37 -08:00
parent 8c76b8c465
commit cd17100fe6
2 changed files with 8 additions and 6 deletions
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13
camera/provider/2.4/ICameraProvider.hal
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@@ -35,22 +35,23 @@ import android.hardware.camera.device@3.2::ICameraDevice;
* where
* - <major>/<minor> is the provider HAL HIDL version,
* - <type> is the type of devices this provider knows about, such as
* "internal", "legacy", "usb", or "remote"
* "internal", "legacy", "external", or "remote"
* - <instance> is a non-negative integer starting from 0 to disambiguate
* between multiple HALs of the same type.
*
* The "legacy" type is only used for passthrough legacy HAL mode, and must
* not be used by a standalone binderized HAL.
*
* The device instance names enumerated by the provider must be of the form
* The device instance names enumerated by the provider in getCameraIdList() or
* ICameraProviderCallback::cameraDeviceStatusChange() must be of the form
* "device@<major>.<minor>/<type>/<id>" where
* <major>/<minor> is the HIDL version of the interface. <id> is either a small
* incrementing integer for "internal" device types, with 0 being the main
* back-facing camera and 1 being the main front-facing camera, if they exist.
* Or, for external devices such as type "usb", a unique serial number that can
* be used to identify the device reliably when it is disconnected and
* reconnected. Multiple providers may not enumerate the same device ID.
* Or, for external devices, a unique serial number (if possible) that can be
* used to identify the device reliably when it is disconnected and reconnected.
*
* Multiple providers must not enumerate the same device ID.
*/
interface ICameraProvider {
@@ -97,7 +98,7 @@ interface ICameraProvider {
getVendorTags() generates (Status status, vec<VendorTagSection> sections);
/**
* getCameraDeviceList:
* getCameraIdList:
*
* Returns the list of internal camera device interfaces known to this
* camera provider. These devices can then be accessed via the hardware

1
current.txt
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@@ -251,6 +251,7 @@ c8bc853546dd55584611def2a9fa1d99f657e3366c976d2f60fe6b8aa6d2cb87 android.hardwar
# ABI preserving changes to HALs during Android P
cf72ff5a52bfa4d08e9e1000cf3ab5952a2d280c7f13cdad5ab7905c08050766 android.hardware.camera.metadata@3.2::types
7b4723305354193b889a24153e1292fec62d5a5127bdfba08a5a27440f092de9 android.hardware.camera.provider@2.4::ICameraProvider
6fa9804a17a8bb7923a56bd10493a5483c20007e4c9026fd04287bee7c945a8c android.hardware.gnss@1.0::IGnssCallback
fb92e2b40f8e9d494e8fd3b4ac18499a3216342e7cff160714c3bbf3660b6e79 android.hardware.gnss@1.0::IGnssConfiguration
251594ea9b27447bfa005ebd806e58fb0ae4aad84a69938129c9800ec0c64eda android.hardware.gnss@1.0::IGnssMeasurementCallback