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[STM32] use DMA in USB host driver #260

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pierstitus opened this issue Feb 14, 2021 · 1 comment
Open

[STM32] use DMA in USB host driver #260

pierstitus opened this issue Feb 14, 2021 · 1 comment
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@fpoussin
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@pierstitus
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For performance it would be good to use DMA in the USB host driver.

Currently the STM USB host library doesn't support hubs, and the ChibiOS-Contrib USB host driver doesn't use DMA, so it would be very valuable to have DMA in here, so one doesn't have to choose between performance and hub support.
@fpoussin fpoussin self-assigned this Feb 14, 2021
@dismirlian
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Hi @pierstitus, just to note that the current USB Host stack doesn't use DMA because the full speed OTG module in the STM32 doesn't have DMA support. So, one driver fits all...

Adding DMA would be great!

Diego.

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@fpoussin @pierstitus @dismirlian