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https://github.com/zephyrproject-rtos/zephyr
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b0e3a5fb9f
Currently the cdc_acm implementation pass the data to usb_transfer() by a chunk of IN endpoint MPS. This has 2 drawbacks: - at higher throughput, each transfer needs 2 packets due to the need of an extra ZLP; - a temporary buffer of size USB MPS is needed. This patch improves the memory consumption and performances by passing the ring buffer directly to usb_transfer(). It only has a small performance degradation when the ring buffer wraps and less than a IN endpoint MPS has to be sent. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> |
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| .. | ||
| hid | ||
| netusb | ||
| bluetooth.c | ||
| cdc_acm.c | ||
| CMakeLists.txt | ||
| Kconfig | ||
| Kconfig.template.composite_device_number | ||
| loopback.c | ||
| mass_storage.c | ||
| usb_dfu.c | ||