pnp_request_card_device — Searches for a PnP device under the specified card
struct pnp_dev * pnp_request_card_device
(struct pnp_card_link * clink, const char * id, struct pnp_dev * from);
pointer to the card link, cannot be NULL
pointer to a PnP ID structure that explains the rules for finding the device
Starting place to search from. If NULL it will start from the begining.