HLD for PDDF CHILD_CARDS - #2494
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Signed-off-by: Antonio Hui <antonio@nexthop.ai>
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Signed-off-by: Antonio Hui <antonio@nexthop.ai>
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rebuild-source: sonic-net#2494 @ nexthop-ai/SONiC f642483 [case: upstream:open]
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Purpose
PDDF currently instantiates devices during boot using the hard-coded
dev_typeattribute. This enhancement adds the ability to initialize component whose instantiation depends on information read from an EEPROM. This is useful for instance, if a component is sourced from multiple vendors and consequently has a different interface / driver depending on which vendor/model is loaded on a given system.PDDF changes PR: sonic-net/sonic-buildimage#28958
Resolves: sonic-net/sonic-buildimage#28959
Example Usage
The
CHILD_CARDSfeature is used by the Nexthop NH-4220 platform:sonic-net/sonic-buildimage#28988