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- # SPDX-License-Identifier: GPL-2.0-only
- #
- # CAIF physical drivers
- #
- comment "CAIF transport drivers"
- config CAIF_TTY
- tristate "CAIF TTY transport driver"
- depends on CAIF && TTY
- default n
- ---help---
- The CAIF TTY transport driver is a Line Discipline (ldisc)
- identified as N_CAIF. When this ldisc is opened from user space
- it will redirect the TTY's traffic into the CAIF stack.
- config CAIF_SPI_SLAVE
- tristate "CAIF SPI transport driver for slave interface"
- depends on CAIF && HAS_DMA
- default n
- ---help---
- The CAIF Link layer SPI Protocol driver for Slave SPI interface.
- This driver implements a platform driver to accommodate for a
- platform specific SPI device. A sample CAIF SPI Platform device is
- provided in Documentation/networking/caif/spi_porting.txt
- config CAIF_SPI_SYNC
- bool "Next command and length in start of frame"
- depends on CAIF_SPI_SLAVE
- default n
- ---help---
- Putting the next command and length in the start of the frame can
- help to synchronize to the next transfer in case of over or under-runs.
- This option also needs to be enabled on the modem.
- config CAIF_HSI
- tristate "CAIF HSI transport driver"
- depends on CAIF
- default n
- ---help---
- The caif low level driver for CAIF over HSI.
- Be aware that if you enable this then you also need to
- enable a low-level HSI driver.
- config CAIF_VIRTIO
- tristate "CAIF virtio transport driver"
- depends on CAIF && HAS_DMA
- select VHOST_RING
- select VIRTIO
- select GENERIC_ALLOCATOR
- default n
- ---help---
- The caif driver for CAIF over Virtio.
- if CAIF_VIRTIO
- source "drivers/vhost/Kconfig.vringh"
- endif
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