Man page 9 : read_zsreg

read_zsreg - Read a register from a Z85230

u8 read_zsreg(struct z8530_channel *  c , u8  reg );

c
    Z8530 channel to read from (2 per chip)

reg
    Register to read

Use a spinlock.

Most of the Z8530 registers are indexed off the control registers. A read is done by writing to the control register and reading the register back. The caller must hold the lock

Alan Cox <>
    Author.