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The Linux kernel configuration item CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN has multiple definitions:
arch/cris/KconfigThe configuration item CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN:
CONFIG_ETRAXFSEnables the DMA7 input channel for ser0 (ttyS0). 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.
arch/cris/arch-v32/drivers/KconfigThe configuration item CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN:
CONFIG_ETRAX_SERIAL_PORT0Enables the DMA7 input channel for ser0 (ttyS0). 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.
arch/cris/arch-v10/drivers/KconfigThe configuration item CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN:
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