Defines starting with `c' in arch/i386/isa/ic

• CMDBYTE arch/i386/isa/ic/i8042.h:27
• com_cfcr arch/i386/isa/ic/ns16450.h:47
• com_data arch/i386/isa/ic/ns16450.h:41
• com_dlbh arch/i386/isa/ic/ns16450.h:43
• com_dlbl arch/i386/isa/ic/ns16450.h:42
• com_fifo arch/i386/isa/ic/ns16550.h:46
• com_ier arch/i386/isa/ic/ns16450.h:44
• com_iir arch/i386/isa/ic/ns16450.h:45
• com_lctl arch/i386/isa/ic/ns16450.h:46
• com_lsr arch/i386/isa/ic/ns16450.h:49
• com_mcr arch/i386/isa/ic/ns16450.h:48
• com_msr arch/i386/isa/ic/ns16450.h:50
• com_scratch arch/i386/isa/ic/ns16550.h:52