Thanks @annevk for the clarification. USB devices are unable to distinguish requests from multiple sources so operating systems only allow an interface to have a single owning user-space or kernel-space driver. In WebUSB, the UA acts as a user-space driver and only allows a single JavaScript execution context to claim an interface at a time. Therefore, it shouldn't be possible for multiple workers to access the same USB device concurrently. I hope that this answers your question @dbaron. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/w3ctag/design-reviews/issues/277#issuecomment-386046603
Received on Wednesday, 2 May 2018 16:55:37 UTC