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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 16 |
1 files changed, 7 insertions, 9 deletions
@@ -219,7 +219,7 @@ dispatching inferences to the Ethos-U kernel driver. As the component diagram below illustrates the network is separated from the inference, allowing multiple inferences to share the same network. The buffer -class is used to store any data. +class is used to store IFM and OFM data.  @@ -232,9 +232,9 @@ The `Device` class opens a file descriptor to the device node `/dev/ethosu<nr>`. This file descriptor is used to issue IOCTL request to kernel space to create buffers and networks. -The `Network` class uses the `Device` object to create a new network object. The -network model is stored in a `Buffer` that the network parses to discover the -dimensions of the network model. +The `Network` class uses the `Device` object to create a new network object. +The network model is provided in a user buffer that is copied into an internal +buffer and parsed to discover the dimensions of the network model. The `Inference` class uses the `Network` object to create an inference. The array of IFM `Buffers` need to be populated with data before the inference @@ -259,13 +259,11 @@ for reading and/or writing. ## Network Creating a network assumes that the device node has already been opened, and -that a buffer has been allocated and populated with the network model. +that a user buffer populated with the network model is available. A new network is created by issuing an IOCTL command on the device node file -descriptor. A file descriptor to a buffer - containing the network model - is -passed in the IOCTL data. The network class increases the reference count on the -buffer, preventing the buffer from being freed before the network object has -been destructed. +descriptor. A pointer to the user buffer - containing the network model - and +its size is passed in the IOCTL data.  |