commit 9228e50119a13c155d6048d7ee713e380ca54737
author Robert Wu <robertwu@google.com> Fri May 06 18:14:13 2022 +0000
committer Robert Wu <robertwu@google.com> Mon May 09 17:14:04 2022 +0000
tree d81fdbc27f8f34777779cd520fe3f8cbc202fda9
parent 7fe0b77c8bbd4760ee13003c39cf59f7be633850

USB MIDI: Replace bulkTransfer with requestWait

When getting data from a device, bulkTransfer loses
~1-2% of data. The recommended approach is to use
requestWait as done in this CL.

This method also lets us remove a lock. Removing
this lock speeds up initialization, fixing a timeout
bug with CTS Verifier.

Also add a null check for UsbDeviceConnection

Bug: 231496864
Bug: 223316278
Bug: 231973034

Test: MidiKeyboard/MidiSynth to multiple keyboards
Test: CTS Verifier with AudioBox USB96

Change-Id: Ib841fd0b092e93ac5fdb7a65221ec5c2958f6171