samples: usb: add usb msc sample app with sd card support#427
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MaheshAvula-Alifsemi wants to merge 1 commit intoalifsemi:mainfrom
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samples: usb: add usb msc sample app with sd card support#427MaheshAvula-Alifsemi wants to merge 1 commit intoalifsemi:mainfrom
MaheshAvula-Alifsemi wants to merge 1 commit intoalifsemi:mainfrom
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Pull request overview
Adds an Alif-focused USB Mass Storage Class (MSC) sample configuration that uses an SD card as the backing storage, including required board overlays and linker-script retention for MSC endpoint buffers.
Changes:
- Retain MSC USB endpoint net_buf pool in Alif non-secure linker scripts.
- Add a Zephyr snippet to apply board-specific DT overlays for Alif DK boards.
- Add new Alif board overlays and a sample config enabling SD/MMC + FATFS for MSC storage.
Reviewed changes
Copilot reviewed 9 out of 9 changed files in this pull request and generated 5 comments.
Show a summary per file
| File | Description |
|---|---|
| soc/alif/ensemble/common/alif_ns.ld | Keeps MSC endpoint pool section to prevent it being garbage-collected. |
| soc/alif/balletto/common/alif_ns.ld | Same KEEP addition for MSC endpoint pool as ensemble. |
| samples/subsys/usb/mass/snippets/alif-msc-sd/snippet.yml | Adds snippet mapping Alif boards to DT overlay files. |
| samples/subsys/usb/mass/boards/alif_usb.overlay | New common overlay intended to enable NS + USB nodes. |
| samples/subsys/usb/mass/boards/alif_msc_sd.conf | New Kconfig fragment enabling SD card + FATFS + SDHC settings. |
| samples/subsys/usb/mass/boards/alif_e4_e8_dk.overlay | New board overlay enabling USB/NS and SDHC(+gpio) for E4/E8 DK. |
| samples/subsys/usb/mass/boards/alif_e3_e7_dk.overlay | New board overlay enabling USB/NS and SDHC for E3/E7 DK. |
| samples/subsys/usb/mass/boards/alif_e1c_dk.overlay | New board overlay enabling USB/NS and SDHC for E1C DK. |
| samples/subsys/usb/mass/boards/alif_b1_dk.overlay | New board overlay enabling USB/NS and SDHC(+gpio) for B1 DK. |
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Added USB device mass storage class sample application support,integrated SD card support to be used as the media device for the MSC. USB MSC allows the device to communicate with a host system, enabling file operations (read/write) from the SD card. Signed-off-by: Mahesh Avula <mahesh.avula@alifsemi.com>
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sudhir-alifsemi
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Added USB device mass storage class sample application support,integrated SD card support to be used as the media device for the MSC.
USB MSC allows the device to communicate with a host system, enabling file operations (read/write) from the SD card.