Hi,
I would like to start learning about Linux kernel and device drivers
development.
Should I have to start with LDD3 as a lot of people advice ? or can I start
with the Essential Linux Device Drivers by Sreekrishnan Venkateswaran.
I know that the second book may be more advanced but I feel that
They are afraid that some peripheral device will report interrupt and after
board reset the peripheral device will be in some transient state if
handling of interrupt from peripheral device will be somewhere in the
middle interrupted by board reset. However in this case this is probably
uboot task
The comment to flush_scheduled_work states that calling this function in
the context of a work routine will lead to deadlock. I think it means
following scenario:
static void
handler(struct work_struct *work)
{
flush_scheduled_work();
}
static DECLARE_WORK(work, handler);
schedule_work();
On Thu, Apr 30, 2020 at 01:11:06PM +0200, Tomek The Messenger wrote:
> Hi
> If I don't have disabled irqs I can use API i2c_smbus_write_byte in order
> to perform i2c transaction.
> But how to make i2c transaction if I have disabled irq? Is any built-in
> function which lets such operation, where
Hi
If I don't have disabled irqs I can use API i2c_smbus_write_byte in order
to perform i2c transaction.
But how to make i2c transaction if I have disabled irq? Is any built-in
function which lets such operation, where there is some polling implemented?
The background is that I do i2c transaction
