__mei_cl_send
ret = __mei_cl_send(cl, (u8 *)&cmd, sizeof(cmd), 0,
return __mei_cl_send(cl, buf, length, vtag, MEI_CL_IO_TX_BLOCKING);
ret = __mei_cl_send(cl, (u8 *)ext_hdr, buf_sz, 0, MEI_CL_IO_SGL);
ssize_t __mei_cl_send(struct mei_cl *cl, const u8 *buf, size_t length, u8 vtag,