DTPARAM - Online Linux Manual Page

Section : 1
NAMEdtparam − mainpulate parameters of the base device-tree
SYNOPSISdtparam[param=val . . .] dtparam−h [param]
DESCRIPTIONdtparam is a command line utility for manipulating the base device-tree's parameters. For example, it can be used to enable the SPI or I2C interfaces at runtime without rebooting. If dtparam is run without any argument, it prints the names of all base device-tree parameters and their description.
OPTIONS −h [param]  If given without param displays help on the application overall. If param is specified, prints help about that parameter in the base device-tree.
EXAMPLES sudo dtparam spi=on  Enable the SPI interface on the GPIO header. Note that root privileges are usually required for manipulating the base device-tree (hence, sudo in the example). dtparam -h spi  Print help about the "spi" parameter. sudo dtparam audio=off  Disable the audio output.
SEE ALSOdtoverlay(1), dtmerge(1), [DTREE]
REFERENCES[DTREE]  https://www.raspberrypi.org/documentation/configuration/device-tree.md 0
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