tag	line	file	source code
channel2	1212	drivers/block/ide-cd.c	buffer[21] = volctrl.channel2 & mask[21];
channel2	326	drivers/scsi/sr_ioctl.c	buffer[25] = volctrl.channel2 & mask[25];
channel2	304	include/linux/cdrom.h	u_char  channel2;