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-rw-r--r--Documentation/input/input-programming.txt15
1 files changed, 8 insertions, 7 deletions
diff --git a/Documentation/input/input-programming.txt b/Documentation/input/input-programming.txt
index d9d523099bb7..4d932dc66098 100644
--- a/Documentation/input/input-programming.txt
+++ b/Documentation/input/input-programming.txt
@@ -42,8 +42,8 @@ static int __init button_init(void)
42 goto err_free_irq; 42 goto err_free_irq;
43 } 43 }
44 44
45 button_dev->evbit[0] = BIT(EV_KEY); 45 button_dev->evbit[0] = BIT_MASK(EV_KEY);
46 button_dev->keybit[LONG(BTN_0)] = BIT(BTN_0); 46 button_dev->keybit[BIT_WORD(BTN_0)] = BIT_MASK(BTN_0);
47 47
48 error = input_register_device(button_dev); 48 error = input_register_device(button_dev);
49 if (error) { 49 if (error) {
@@ -217,14 +217,15 @@ If you don't need absfuzz and absflat, you can set them to zero, which mean
217that the thing is precise and always returns to exactly the center position 217that the thing is precise and always returns to exactly the center position
218(if it has any). 218(if it has any).
219 219
2201.4 NBITS(), LONG(), BIT() 2201.4 BITS_TO_LONGS(), BIT_WORD(), BIT_MASK()
221~~~~~~~~~~~~~~~~~~~~~~~~~~ 221~~~~~~~~~~~~~~~~~~~~~~~~~~
222 222
223These three macros from input.h help some bitfield computations: 223These three macros from bitops.h help some bitfield computations:
224 224
225 NBITS(x) - returns the length of a bitfield array in longs for x bits 225 BITS_TO_LONGS(x) - returns the length of a bitfield array in longs for
226 LONG(x) - returns the index in the array in longs for bit x 226 x bits
227 BIT(x) - returns the index in a long for bit x 227 BIT_WORD(x) - returns the index in the array in longs for bit x
228 BIT_MASK(x) - returns the index in a long for bit x
228 229
2291.5 The id* and name fields 2301.5 The id* and name fields
230~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 231~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~