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CONFIG_ETRAX_SERIAL_PORT4_DMA9_IN: Ser4 uses DMA9 for input

General informations

The Linux kernel configuration item CONFIG_ETRAX_SERIAL_PORT4_DMA9_IN:

Help text

Enables the DMA9 input channel for ser4 (ttyS4). If you do not enable DMA, an interrupt for each character will be used when receiving data. Normally you want to use DMA, unless you use the DMA channel for something else.

Hardware

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