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Use nrfx QSPI with Zephyr filesystem

I'm using Zephyr on a nRF52840 and I'd like to use the QSPI with the Fat Filesystem.   I added the following Config statements to prj.conf:


# Filesystem
CONFIG_FILE_SYSTEM=y
CONFIG_FAT_FILESYSTEM_ELM=y
CONFIG_NRFX_QSPI=y
CONFIG_DISK_ACCESS=y
CONFIG_DISK_ACCESS_SDHC=y
CONFIG_DISK_ACCESS_SPI_SDHC=y

The nrfx QSPI driver and file system code is then included in the build, but I'm unsure how to associate the QSPI with the filesystem.    I don't see a "CONFIG_DISK_ACCESS_QSPI_SDHC" to replace the "CONFIG_DISK_ACCESS_SPI_SDHC".    Or is there a different way to do this that I'm missing?

Thanks!

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