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Diffstat (limited to 'Documentation/DocBook/deviceiobook.tmpl')
-rw-r--r-- | Documentation/DocBook/deviceiobook.tmpl | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/Documentation/DocBook/deviceiobook.tmpl b/Documentation/DocBook/deviceiobook.tmpl index 6f41f2f5c6f6..90ed23df1f68 100644 --- a/Documentation/DocBook/deviceiobook.tmpl +++ b/Documentation/DocBook/deviceiobook.tmpl | |||
@@ -270,25 +270,6 @@ CPU B: spin_unlock_irqrestore(&dev_lock, flags) | |||
270 | </para> | 270 | </para> |
271 | </sect1> | 271 | </sect1> |
272 | 272 | ||
273 | <sect1> | ||
274 | <title>ISA legacy functions</title> | ||
275 | <para> | ||
276 | On older kernels (2.2 and earlier) the ISA bus could be read or | ||
277 | written with these functions and without ioremap being used. This is | ||
278 | no longer true in Linux 2.4. A set of equivalent functions exist for | ||
279 | easy legacy driver porting. The functions available are prefixed | ||
280 | with 'isa_' and are <function>isa_readb</function>, | ||
281 | <function>isa_writeb</function>, <function>isa_readw</function>, | ||
282 | <function>isa_writew</function>, <function>isa_readl</function>, | ||
283 | <function>isa_writel</function>, <function>isa_memcpy_fromio</function> | ||
284 | and <function>isa_memcpy_toio</function> | ||
285 | </para> | ||
286 | <para> | ||
287 | These functions should not be used in new drivers, and will | ||
288 | eventually be going away. | ||
289 | </para> | ||
290 | </sect1> | ||
291 | |||
292 | </chapter> | 273 | </chapter> |
293 | 274 | ||
294 | <chapter> | 275 | <chapter> |