Hello All,
I have a question regarding the wait queues. I have a driver
pxausb_core.o which is the core driver which does all USB endpoint
handling and hardware interaction. I have one more driver on top of it
usb-serial which provides for the user-level interaction(like read,
write, ioctl).
I have implemented a blocking ioctl, which sends events about the state
of USB device(enumerated, suspended, disconnected, etc).
For this ioctl, i have declared a wait_queue and initialized (using
init_waitqueue_head() func.) in the usb_ctl.c which is part of
pxausb_core.o. (it has usb_send.c, usb_recv.c, usb_ctl.c, usb_ep0.c).
I am using that wait_queue variable in usb-ser.c.
I just wanted to clarify myself whether the wait queues can be shared
between two driver modules.
Thank you...
regards,
mohan
Yes, technically, you can share the wait queue between two modules.
Ofcourse, provided you can manage to initialise it before any use.
Kedar.
On Fri, 11 Mar 2005 17:11:18 +0530, Mohan <[email protected]> wrote:
> Hello All,
>
> I have a question regarding the wait queues. I have a driver
> pxausb_core.o which is the core driver which does all USB endpoint
> handling and hardware interaction. I have one more driver on top of it
> usb-serial which provides for the user-level interaction(like read,
> write, ioctl).
> I have implemented a blocking ioctl, which sends events about the state
> of USB device(enumerated, suspended, disconnected, etc).
> For this ioctl, i have declared a wait_queue and initialized (using
> init_waitqueue_head() func.) in the usb_ctl.c which is part of
> pxausb_core.o. (it has usb_send.c, usb_recv.c, usb_ctl.c, usb_ep0.c).
> I am using that wait_queue variable in usb-ser.c.
>
> I just wanted to clarify myself whether the wait queues can be shared
> between two driver modules.
>
> Thank you...
> regards,
> mohan