cam_extend_set
void *cam_extend_set(struct extend_array *ea, int index, void *value);
cam_extend_set(cdperiphs, periph->unit_number, periph);
cam_extend_set(chperiphs, periph->unit_number, periph);
cam_extend_set(daperiphs, periph->unit_number, periph);
cam_extend_set(passperiphs, periph->unit_number, periph);
cam_extend_set(ptperiphs, periph->unit_number, periph);
cam_extend_set(saperiphs, periph->unit_number, periph);
cam_extend_set(sesperiphs, periph->unit_number, periph);