No, I've never come across an Eyle lineage. Eyle are like the Waata and Aweer who are found in Kenya. Waata and Eyle were Waaq worshipping Cushitic people, who also have an Arab fathers foundation myth. Here are some Waata people explaining their origins and their life.
Eyle, Aweer, Dahalo and Waata are all small hunter gatherer tribes. Waata are the best known because they are the largest and they are in Kenya so there is more written about them.
They are distinct most because of their different lifestyle of hunters. They never adopted pastoralism or agriculture but remained hunters and gatherers. They are not a people who predate other Cushitic people but rather a people who went down a different path than everyone else.
What makes you think think they are Cushitic and not just language shifters? This study says:
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https://drum.lib.umd.edu/handle/1903/11443, page 122.
B2a and b are Khoisan. Did you read the Eyle archaeology?