Hi,
I am adding aio_read and aio_write hooks to my character driver.
When I make aio_read() system call, for some reason instead of dbg_aio_read(), kernel is calling the syncronous dbg_read() function.
Here is the application level code for opening the file:
fd = open("/dev/debug_driver", O_RDONLY );
Below is the file_operations structure:
static struct file_operations debug_fops = {
.owner = THIS_MODULE,
.aio_read = dbg_aio_read,
.read = dbg_read,
.ioctl = dbg_ioctl,
.open = dbg_open,
.release = dbg_release,
};
What additional thing I need to do so that my char driver aio_read is called when application calls aio_read() system call?
Interestingly same code is working if i
open a normal text file.
Regards,
Parav Pandit
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