72b7abd1a1
- if an operation (R, W, IOCTL) is non blocking, a flag is set and sent to the device. - nothing changes for sync devices - asyn devices should reply asap if an operation is non-blocking. We must trust the devices, but we had to trust them anyway to reply to CANCEL correctly - we safe sending CANCEL commands to asyn devices. This greatly simplifies the protocol. Asynchronous devices can always reply when a reply is ready and do not need to deal with other situations - currently, none of our drivers use the flags since they drive virtual devices which do not block |
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| random.h | ||