CmdID

CmdID / Commands

devmem

Read/write physical addresses. toybox

On Linux

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Linux

from the toybox, 0BSD

Read/write physical addresses. WIDTH is 1, 2, 4, or 8 bytes (default 4). Prefix ADDR with 0x for hexadecimal, output is in same base as address.

devmem [-f FILE] ADDR [WIDTH [DATA...]]
-f FILEFile to operate on (default /dev/mem)
--no-syncDon't open the file with O_SYNC (for cached access)
--no-mmapDon't mmap the file