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Diffstat (limited to 'include/linux/ioport.h')
-rw-r--r--include/linux/ioport.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 589e0e75efa..85ac9b9b72a 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -29,8 +29,9 @@ struct resource {
#define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */
#define IORESOURCE_TYPE_BITS 0x00001f00 /* Resource type */
-#define IORESOURCE_IO 0x00000100
+#define IORESOURCE_IO 0x00000100 /* PCI/ISA I/O ports */
#define IORESOURCE_MEM 0x00000200
+#define IORESOURCE_REG 0x00000300 /* Register offsets */
#define IORESOURCE_IRQ 0x00000400
#define IORESOURCE_DMA 0x00000800
#define IORESOURCE_BUS 0x00001000