The following is errata for Writing OS/2 2.0 Device Drivers in C as
of 20 April, 1992.


Page 9, last paragraph, line 2, replace "Figure 3-2" with "Figure
2-3"

Page 16, first paragraph, replace entire paragraph with:

"Processors are generally referred to by the size of the data which
 can be handled at any one given time. The 8088 is referred to as a
 16-bit processor, although technically it can only handle 8 bits at
 a time (The 8088 performs 16-bit operations by transparently
 multiplexing two 8-bit operations). The 80286, for example, is
 called a 16-bit processor because it can handle data 16 bits at a
 time. The 80386 and 80486 are referred to as 32-bit processors
 because they can directly manipulate data 32 bits at a time."

Page 17, first paragraph, line 2, replace "eight-bit" with "16-bit"

Page 18, last paragraph, first sentence, replace "30" with "25".

Page 19, first paragraph, line 2, replace "25" with "33".

Page 19, last paragraph, third sentence which begins "The processor
speed", delete entire sentence.

Page 49, last paragraph, second sentence, replace "Figure 5-3" with
"Figure 5-5".

Page 399, Listings, change "#define WRITE_POS_REG_CARD 0x0D" with
"#define WRITE_POS_REG_CARD 0x0E"