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 motherboard.h file INT 36 is RTC
and 37 is UART0.Please help
Regards,
Amit.
On Saturday, 15 February 2014 12:21 AM, Anand Moon <[email protected]> wrote:
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
<[email protected]> wrote:
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
<[email protected]> wrote:
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 <[email protected]> wrote:
>
>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 any programming in the board file.
>>The purpose if the board file it describing the hardware.
>>Please note, board files go away, device tree is the way to go.
>>
>>
>>Thanks,
>>//richard
>>
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