The comedi subsystem only requires the drivers to support interrupts if one or more of the subdevices support async commands. Since this is optional: 1) don't fail the attach if the irq is not available 2) only hookup the async command support if the irq is available 3) remove any async command init from subdevices that don't need it 4) remove any unnecessary sanity checks in the async command functions Make use of the comedi_device 'read_subdev' and 'write_subdev' pointers instead of accessing the dev->subdevices array directly with "magic" numbers to the correct subdevice. Also, remove any unnecessary debug noise associated with the irq requests. This series was originally posted on 3 Dec 2013 as: [PATCH 00/51] staging: comedi: cleanup irq requests The first 17 patches of that series hare already been applied to Greg Kroah-Hartman's staging tree. This series is a repost of the remaining patches after addressing some issues pointed out by Ian Abbott. H Hartley Sweeten (31): staging: comedi: ni_at_2150: tidy up irq/dma request staging: comedi: me4000: use dev->read_subdev staging: comedi: me4000: refactor request_irq() during attach staging: comedi: me4000: remove unnecessary check in the irq handler staging: comedi: das1800: tidy up irq request staging: comedi: das1800: use dev->read_subdev staging: comedi: das16m1: remove unnecessary 'dev->irq' test staging: comedi: adl_pci9111: fix incorrect irq passed to request_irq() staging: comedi: adl_pci9111: the irq is only needed for async command support staging: comedi: dt2814: use dev->read_subdev staging: comedi: dt282x: use dev->read_subdev staging: comedi: dt282x: use dev->write_subdev staging: comedi: amplc_pci230: tidy up irq request staging: comedi: adl_pci9118: tidy up irq request staging: comedi: adv_pci1710: only init async command members when needed staging: comedi: adv_pci1710: use dev->read_subdev staging: comedi: dt3000: don't fail attach if irq is not available staging: comedi: dt3000: use dev->read_subdev staging: comedi: s626: use dev->read_subdev staging: comedi: hwrdv_apci3120: use dev->read_subdev staging: comedi: hwrdv_apci3200: use dev->read_subdev staging: comedi: adl_pci9118: use dev->read_subdev staging: comedi: amplc_pc236: use dev->read_subdev staging: comedi: amplc_pci224: use dev->write_subdev staging: comedi: ni_65xx: use dev->read_subdev staging: comedi: ni_atmio16d: use dev->read_subdev staging: comedi: rtd520: use dev->read_subdev staging: comedi: ni_pcidio: factor board reset out of attach staging: comedi: ni_pcidio: use dev->read_subdev staging: comedi: ni_pcidio: request_irq() before seting up subdevices staging: comedi: multiq3: pass subdevice to encoder_reset() .../comedi/drivers/addi-data/hwdrv_apci3120.c | 6 +- .../comedi/drivers/addi-data/hwdrv_apci3200.c | 2 +- drivers/staging/comedi/drivers/adl_pci9111.c | 31 ++++---- drivers/staging/comedi/drivers/adl_pci9118.c | 45 +++++------ drivers/staging/comedi/drivers/adv_pci1710.c | 10 +-- drivers/staging/comedi/drivers/amplc_pc236.c | 2 +- drivers/staging/comedi/drivers/amplc_pci224.c | 2 +- drivers/staging/comedi/drivers/amplc_pci230.c | 27 +++---- drivers/staging/comedi/drivers/das16m1.c | 5 -- drivers/staging/comedi/drivers/das1800.c | 88 ++++++++++------------ drivers/staging/comedi/drivers/dt2814.c | 4 +- drivers/staging/comedi/drivers/dt282x.c | 10 +-- drivers/staging/comedi/drivers/dt3000.c | 29 +++---- drivers/staging/comedi/drivers/me4000.c | 37 ++++----- drivers/staging/comedi/drivers/multiq3.c | 6 +- drivers/staging/comedi/drivers/ni_65xx.c | 2 +- drivers/staging/comedi/drivers/ni_at_a2150.c | 79 ++++++++----------- drivers/staging/comedi/drivers/ni_atmio16d.c | 2 +- drivers/staging/comedi/drivers/ni_pcidio.c | 64 +++++++++------- drivers/staging/comedi/drivers/rtd520.c | 2 +- drivers/staging/comedi/drivers/s626.c | 8 +- 21 files changed, 206 insertions(+), 255 deletions(-) -- 1.8.4.4 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
