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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-03-07 12:21:16 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-05-10 10:23:13 +0200 |
| commit | eb14120f743d29744d9475bffec56ff4ad43a749 (patch) | |
| tree | 56857094d2b0cfc0ecbd1685f18d6edbe78e140f /Documentation/pcmcia | |
| parent | a7debe789dfcaee9c4d81e5738b0be8c5d93930b (diff) | |
| download | lwn-eb14120f743d29744d9475bffec56ff4ad43a749.tar.gz lwn-eb14120f743d29744d9475bffec56ff4ad43a749.zip | |
pcmcia: re-work pcmcia_request_irq()
Instead of the old pcmcia_request_irq() interface, drivers may now
choose between:
- calling request_irq/free_irq directly. Use the IRQ from *p_dev->irq.
- use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will
clean up automatically on calls to pcmcia_disable_device() or
device ejection.
- drivers still not capable of IRQF_SHARED (or not telling us so) may
use the deprecated pcmcia_request_exclusive_irq() for the time
being; they might receive a shared IRQ nonetheless.
CC: linux-bluetooth@vger.kernel.org
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-serial@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: linux-usb@vger.kernel.org
CC: linux-ide@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'Documentation/pcmcia')
| -rw-r--r-- | Documentation/pcmcia/driver-changes.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/pcmcia/driver-changes.txt b/Documentation/pcmcia/driver-changes.txt index 446f43b309df..3268a9ae7271 100644 --- a/Documentation/pcmcia/driver-changes.txt +++ b/Documentation/pcmcia/driver-changes.txt @@ -1,4 +1,14 @@ This file details changes in 2.6 which affect PCMCIA card driver authors: +* New IRQ request rules (as of 2.6.35) + Instead of the old pcmcia_request_irq() interface, drivers may now + choose between: + - calling request_irq/free_irq directly. Use the IRQ from *p_dev->irq. + - use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will + clean up automatically on calls to pcmcia_disable_device() or + device ejection. + - drivers still not capable of IRQF_SHARED (or not telling us so) may + use the deprecated pcmcia_request_exclusive_irq() for the time + being; they might receive a shared IRQ nonetheless. * no cs_error / CS_CHECK / CONFIG_PCMCIA_DEBUG (as of 2.6.33) Instead of the cs_error() callback or the CS_CHECK() macro, please use |