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| author | Anton Altaparmakov <aia21@cantab.net> | 2005-06-23 11:26:22 +0100 |
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| committer | Anton Altaparmakov <aia21@cantab.net> | 2005-06-23 11:26:22 +0100 |
| commit | 3357d4c75f1fb67e7304998c4ad4e9a9fed66fa4 (patch) | |
| tree | ceba46966a5a1112a05d257d8ecb25ae5eee95e0 /Documentation/driver-model/device.txt | |
| parent | 364f6c717deef4a3ac4982e670fa9846b43cd060 (diff) | |
| parent | ee98689be1b054897ff17655008c3048fe88be94 (diff) | |
| download | linux-stable-3357d4c75f1fb67e7304998c4ad4e9a9fed66fa4.tar.gz | |
Automatic merge with /usr/src/ntfs-2.6.git.
Diffstat (limited to 'Documentation/driver-model/device.txt')
| -rw-r--r-- | Documentation/driver-model/device.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/driver-model/device.txt b/Documentation/driver-model/device.txt index 58cc5dc8fd3e..a05ec50f8004 100644 --- a/Documentation/driver-model/device.txt +++ b/Documentation/driver-model/device.txt @@ -76,6 +76,14 @@ driver_data: Driver-specific data. platform_data: Platform data specific to the device. + Example: for devices on custom boards, as typical of embedded + and SOC based hardware, Linux often uses platform_data to point + to board-specific structures describing devices and how they + are wired. That can include what ports are available, chip + variants, which GPIO pins act in what additional roles, and so + on. This shrinks the "Board Support Packages" (BSPs) and + minimizes board-specific #ifdefs in drivers. + current_state: Current power state of the device. saved_state: Pointer to saved state of the device. This is usable by |