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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6656 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lgao4 2008-11-21 03:18:22 +00:00
parent 8404146cfa
commit 0365b95135
1 changed files with 11 additions and 11 deletions
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22
MdePkg/Include/Protocol/DeviceIo.h
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@ -36,14 +36,14 @@ typedef struct _EFI_DEVICE_IO_PROTOCOL EFI_DEVICE_IO_PROTOCOL;
typedef EFI_DEVICE_IO_PROTOCOL EFI_DEVICE_IO_INTERFACE;
typedef enum {
IO_UINT8 = 0,
IO_UINT16 = 1,
IO_UINT32 = 2,
IO_UINT64 = 3,
MMIO_COPY_UINT8 = 4,
MMIO_COPY_UINT16 = 5,
MMIO_COPY_UINT32 = 6,
MMIO_COPY_UINT64 = 7
IO_UINT8 = 0,
IO_UINT16 = 1,
IO_UINT32 = 2,
IO_UINT64 = 3,
MMIO_COPY_UINT8 = 4,
MMIO_COPY_UINT16 = 5,
MMIO_COPY_UINT32 = 6,
MMIO_COPY_UINT64 = 7
} EFI_IO_WIDTH;
/**
@ -55,9 +55,9 @@ typedef enum {
@param Count The number of I/O operations to perform.
@param Buffer For read operations, the destination buffer to store the results. For write
operations, the source buffer to write data from. If
Width is MMIO_COPY_UINT8, MMIO_COPY_UINT16,
MMIO_COPY_UINT32, or MMIO_COPY_UINT64, then
Buffer is interpreted as a base address of an I/O operation such as Address.
Width is MMIO_COPY_UINT8, MMIO_COPY_UINT16,
MMIO_COPY_UINT32, or MMIO_COPY_UINT64, then
Buffer is interpreted as a base address of an I/O operation such as Address.
@retval EFI_SUCCESS The data was read from or written to the device.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.