On 2018/11/29 17:36, Masanobu SAITOH wrote:
Hi.
While I've been working for suspend/resume, I've noticed that some devices
are reported "WARNING: power management not supported" in config_attach_loc()
even though the driver has pmf_device_register() in it. The reason is that
On Fri, 30 Nov 2018, Martin Husemann wrote:
On Fri, Nov 30, 2018 at 02:22:37PM -0400, Jared McNeill wrote:
The driver can call pci_intr_type on the handle returned by pci_intr_alloc
to see what kind of interrupt (INTx/MSI/MSI-X) was negotiated.
Yeah, but the fear was that some hardware could
On Fri, Nov 30, 2018 at 02:22:37PM -0400, Jared McNeill wrote:
> The driver can call pci_intr_type on the handle returned by pci_intr_alloc
> to see what kind of interrupt (INTx/MSI/MSI-X) was negotiated.
Yeah, but the fear was that some hardware could either do a single INT
or (lots of) MSI{X},
On Wed, 28 Nov 2018, Mouse wrote:
This reminds me - how does a driver know if any kind of MSI support
is even available?
it shouldn't need to.
Okay, then I'm missing something. I've seen hardware where enabling
MSI is something device-specific (a value in a register, typically),
meaning
