Hi All,
I am using versatile express board and have tried to allocate four
interrupts (36 to 39) using IRQF_SHARED and IRQF_TRIGGER_HIGH flags in spidev.c
file. However only INT 38 and 39 gets registered. For 36 and 37 I am getting
errno 16 (Resource busy). In versatile express moth
Hi All,
You can use netlink socket to send data from kernel to user space.
-Anand Moon
On Friday, February 14, 2014 11:51 AM, Nilesh Bacchewar
wrote:
you can use Asynchronous notification , FASYNC .
http://www.makelinux.net/ldd3/chp-6-sect-4
Regards,
Nilesh
On Tue, Jan 28, 2014 at
you can use Asynchronous notification , FASYNC .
http://www.makelinux.net/ldd3/chp-6-sect-4
Regards,
Nilesh
On Tue, Jan 28, 2014 at 9:47 PM, Vishwanath Govind <
vishwanath.gov...@gmail.com> wrote:
> You can implement irq handler in spi driver itself. SPI specific platform
> data can pass it f
You can implement irq handler in spi driver itself. SPI specific platform
data can pass it from board file.
Regards
Vishwa
On Tue, Jan 28, 2014 at 9:24 PM, Richard Weinberger wrote:
> Am 28.01.2014 15:12, schrieb Amit Mahadik:
> > Thanks Richard. One more question. If I register an SPI irq str
Am 28.01.2014 15:12, schrieb Amit Mahadik:
> Thanks Richard. One more question. If I register an SPI irq struct
> spi_board_info spi_board_info[] structure in machine board.c file; then the
> request irq api and irq handler
> should be written in board.c file or in the spidev driver.
Never do a
Thanks Richard. One more question. If I register an SPI irq struct
spi_board_info spi_board_info[] structure in machine board.c file; then the
request irq api and irq handler should be written in board.c file or in the
spidev driver.
Regards,
Amit.
On Monday, 27 January 2014 2:54 PM, Richar
Am 27.01.2014 10:21, schrieb Amit Mahadik:
> Thanks for your input. But I dont want to block the read call. Also I dont
> want to miss the interrupts.
Look how other drivers/programs deal with that...
Thanks,
//richard
> Regards,
> Amit.
>
>
> On Monday, 27 January 2014 12:22 PM, Richard Wein
Thanks for your input. But I dont want to block the read call. Also I dont want
to miss the interrupts.
Regards,
Amit.
On Monday, 27 January 2014 12:22 PM, Richard Weinberger wrote:
Am 27.01.2014 06:37, schrieb Amit Mahadik:
> Thanks for the reply Richard.
> The interrupt is not a
Am 27.01.2014 06:37, schrieb Amit Mahadik:
> Thanks for the reply Richard.
> The interrupt is not a GPIO pin. I have read something about UIO
> (userspace I/O).
> Also, I want the operation to be asynchronous. Any pointer to such mechanism
> will be very helpful.
Using UIO you can also
Thanks for the reply Richard.
The interrupt is not a GPIO pin. I have read something about UIO
(userspace I/O).
Also, I want the operation to be asynchronous. Any pointer to such mechanism
will be very helpful.
Regards,
Amit.
On Sunday, 26 January 2014 8:53 PM, Richard Weinberge
On Sun, Jan 26, 2014 at 1:25 PM, Amit Mahadik wrote:
> Hello,
> I am using a custom ARM board. I have a SPI slave device and using
> the spidev_test utility I am able to do ioctls on the slave device.
> However, I have a problem. The SPI slave device has an interrupt pin and I
> want to
Hello,
I am using a custom ARM board. I have a SPI slave device and using
the spidev_test utility I am able to do ioctls on the slave device.
However, I have a problem. The SPI slave device has an interrupt pin and I want
to process the interrupt and send some data into the userspace wh
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