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Diffstat (limited to 'Documentation/ABI/testing/sysfs-nvmem-cells')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-nvmem-cells | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-nvmem-cells b/Documentation/ABI/testing/sysfs-nvmem-cells new file mode 100644 index 000000000000..c7c9444f92a8 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-nvmem-cells @@ -0,0 +1,21 @@ +What: /sys/bus/nvmem/devices/.../cells/<cell-name> +Date: May 2023 +KernelVersion: 6.5 +Contact: Miquel Raynal <miquel.raynal@bootlin.com> +Description: + The "cells" folder contains one file per cell exposed by the + NVMEM device. The name of the file is: "<name>@<byte>,<bit>", + with <name> being the cell name and <where> its location in + the NVMEM device, in hexadecimal bytes and bits (without the + '0x' prefix, to mimic device tree node names). The length of + the file is the size of the cell (when known). The content of + the file is the binary content of the cell (may sometimes be + ASCII, likely without trailing character). + Note: This file is only present if CONFIG_NVMEM_SYSFS + is enabled. + + Example:: + + hexdump -C /sys/bus/nvmem/devices/1-00563/cells/product-name@d,0 + 00000000 54 4e 34 38 4d 2d 50 2d 44 4e |TN48M-P-DN| + 0000000a |