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| author | Ian Abbott <abbotti@mev.co.uk> | 2013-03-15 13:15:35 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-15 16:16:31 (GMT) |
| commit | 00ca6884186f18a758eae37e94f7c3c0527f8f30 (patch) | |
| tree | 69190496dd4ac8e099a2cd0cf0b21d19551cbab9 /drivers/staging/comedi/comedidev.h | |
| parent | 13f12b5aea501bce146cdf213d1819083aadc847 (diff) | |
| download | linux-fsl-qoriq-00ca6884186f18a758eae37e94f7c3c0527f8f30.tar.xz | |
staging: comedi: add 'ioenabled' flag to device
Add 1-bit bit-field member `ioenabled` of type `bool` to `struct
comedi_device`. Use this to keep track of whether a PCI device and its
BARs have been successfully enabled by `comedi_pci_enable()`. This
avoids overloading the meaning of the `iobase` member which is used by
several drivers to hold the base port I/O address of a board's "main"
registers. Other drivers using MMIO use `iobase` as a flag to indicate
that the preceding call to `comedi_pci_enable()` was successful. They
no longer need to do that.
The name `ioenabled` is intended to be PCI-agnostic so it can be used
for similar purposes by non-PCI drivers.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/comedidev.h')
| -rw-r--r-- | drivers/staging/comedi/comedidev.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index 86de4ff..9c8662a 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -209,6 +209,7 @@ struct comedi_device { const void *board_ptr; bool attached:1; bool in_request_module:1; + bool ioenabled:1; spinlock_t spinlock; struct mutex mutex; |