Oliver Neukum wrote:
Hi,
I was just looking at the TODO list and it seemed to me that a list somewhat
more specific and focused on usbcore might be useful.
I think the real issue is who will fix the various bugs and issues that
turn up, but having lists can help focus that energy.
So here's the list of things related to the core I remember so we can look
at the issues and see which need attention before 2.6.0
- reseting during probe will deadlock
- reseting through usbfs will not reprobe
- usb_reset_device() and usb_set_configuration() race with probe()
- bandwidth checking is broken
Removals? Additions? Comments?
Yes, I'll be glad to see more of the usbcore cleanups happen.
Here are a random bunch of things
- Someone just emailed me for help on that classic, and still
unresolved, issue of associating a device from 'lsusb' (etc)
with the right /dev/... printer node. This is largely an
issue usbcore (or the driver model) should solve; it's not
specific to printers (or scanners, or any other driver).
- Your set_configuration updates should happen -- do you have a
current version of that patch?
- Now that the driver model core supports explicit bind/unbind of
drivers to devices, we should get rid of usb_interface->driver
since usb_interface->dev.driver does that job. (This is a case
of me needing to update a patch.)
- usb_set_interface() signature: should take an interface and an
altsetting, not a device and two magic numbers.
- We should have some notion of device state so that we can make
sure that once disconnect processing begins, urb submits fail.
- I still want to see that nasty synchronization code used by
usb_{control,bulk}_msg() get replaced. (I've got a patch
to dust off, but the real issue is that 'struct completion'
should have iowait-and-timeout primitives too...)
- More work can/should be done to merge the "usb_bus" and "hcd"
layers.
- In usb_device we should maintain an array of the current
endpoint descriptors, replacing the maxpacket arrays.
That's hardly a complete list of course.
- Dave
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