ACM_CTRL_RTS       21 drivers/staging/gdm724x/gdm_tty.c #define ACM_CTRL_RTS 0x02
ACM_CTRL_RTS       36 drivers/usb/class/cdc-acm.h #define ACM_CTRL_RTS		0x02
ACM_CTRL_RTS       60 drivers/usb/gadget/function/f_acm.c #define ACM_CTRL_RTS	(1 << 1)	/* unused with full duplex */