Re: how does kext get request from upper applications?
Re: how does kext get request from upper applications?
- Subject: Re: how does kext get request from upper applications?
- From: Alexander von Below <email@hidden>
- Date: Mon, 20 Oct 2014 10:16:29 +0200
Hello Nick,
in order to help you, I need to understand what your primary goal is. I have developed a lot of USB code, and rarely found it necessary for it to live in Kernel space. If your code does not need to live in Kernel space, that would immediately solve your issue, correct?
Alex
Am 20.10.2014 um 09:29 schrieb Nick Yao <email@hidden>:
> Dear Alex
> add subject.
> My leader has assigned the driver task to me. So It's kind of an order.
> I just want to know the interface through which upper applications
> talk to device driver.
> I cannot find these interfaces in IOKit Classes.
>
> Thanks.
>
> Nick
>
> On 10/20/14, Alexander von Below <email@hidden> wrote:
>> Exactly what is your goal? Why does your USB code need to live in kernel
>> space in the first place?
>>
>> Alex
>>
>> Von meinem iPhone gesendet
>>
>>> Am 20.10.2014 um 09:00 schrieb Nick Yao <email@hidden>:
>>>
>>> Hello experts,
>>>
>>> I'm new to MAC development with some linux device driver
>>> experience, and I am working on developing an usb device driver.
>>> I have already read iokit fundamental, but still very confused.
>>> how does kext get request form upper applications？Every base
>>> Class in iokit have different functions.
>>> It gives me the expression that iokit does't expose the same
>>> uniform interface to upper applications.
>>> Is there anything like read/write file operations functions in Linux?
>>>
>>>
>>> Thanks.
>>>
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