diff options
| author | Garfield Tan <xutan@google.com> | 2020-02-24 17:34:27 -0800 |
|---|---|---|
| committer | Garfield Tan <xutan@google.com> | 2020-02-25 01:40:06 +0000 |
| commit | cf11791876e642fcce809d64ed79b0ec67a62c0b (patch) | |
| tree | 5527af1f4be3ed89d3168a8d061b87bdb66207e8 /cmds | |
| parent | 56d9d677e8a0f1dedce778f1ec28a590bcc56fdb (diff) | |
Populate uniq field in uhid.
Sony introduced some logic that combines devices kernel splits into one
Android device based on identical pid, vid and non-empty uniq. Therefore
populate this field with device ID.
We can change that to a separate uniq attribute in register JSON file if
necessary later.
Bug: 38511270
Test: getevent -li shows that uniq is populated.
Change-Id: Ieca0b826c86e9cad7fa3d3c8f98b9cfd54d20c73
Diffstat (limited to 'cmds')
| -rw-r--r-- | cmds/hid/jni/com_android_commands_hid_Device.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/cmds/hid/jni/com_android_commands_hid_Device.cpp b/cmds/hid/jni/com_android_commands_hid_Device.cpp index 95de6c506795..1e200c52a207 100644 --- a/cmds/hid/jni/com_android_commands_hid_Device.cpp +++ b/cmds/hid/jni/com_android_commands_hid_Device.cpp @@ -146,6 +146,8 @@ std::unique_ptr<Device> Device::open(int32_t id, const char* name, int32_t vid, struct uhid_event ev = {}; ev.type = UHID_CREATE2; strlcpy(reinterpret_cast<char*>(ev.u.create2.name), name, sizeof(ev.u.create2.name)); + std::string uniq = android::base::StringPrintf("Id: %d", id); + strlcpy(reinterpret_cast<char*>(ev.u.create2.uniq), uniq.c_str(), sizeof(ev.u.create2.uniq)); memcpy(&ev.u.create2.rd_data, descriptor.data(), size * sizeof(ev.u.create2.rd_data[0])); ev.u.create2.rd_size = size; ev.u.create2.bus = bus; |