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| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-20 16:00:33 -0700 |
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| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-20 16:00:33 -0700 |
| commit | 1d345dac1f30af1cd9f3a1faa12f9f18f17f236e (patch) | |
| tree | 42a7deda7589edf704fe60dc262046755bd3f6a8 /Documentation/driver-model/device.txt | |
| parent | fb395884576684ebb54b19b1054f4caed589d5f0 (diff) | |
| parent | 87c8a4433b608261a9becdb0ce2d2f2ed4b71d05 (diff) | |
| download | linux-3.10-1d345dac1f30af1cd9f3a1faa12f9f18f17f236e.tar.gz linux-3.10-1d345dac1f30af1cd9f3a1faa12f9f18f17f236e.tar.bz2 linux-3.10-1d345dac1f30af1cd9f3a1faa12f9f18f17f236e.zip | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6
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 58cc5dc8fd3..a05ec50f800 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 |