remove unneeded includes; ok mpi@

fix setting parity bits
ok mglocker@

constify method tables in USB serial drivers

ok miod@

spelling
feedback and ok tb@ jmc@ ok ratchov@

Nuke all occurrences of usbd_abort_pipe() if it gets called right
before usbd_close_pipe(), since usbd_close_pipe() already takes care
about aborting non-empty pipes.

As investigated by gerhard@ usb

Nuke all occurrences of usbd_abort_pipe() if it gets called right
before usbd_close_pipe(), since usbd_close_pipe() already takes care
about aborting non-empty pipes.

As investigated by gerhard@ usbdi.c rev. 1.57 did add usbd_abort_pipe()
to usbd_close_pipe(), but the drivers didn't get cleaned up afterwards.

ok gerhard@

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Prevent out-of-bound read if `rate' doesn't match known values.

CID 1453258

ok kettenis@

Correct logic check preventing the device to attach.

Fix regression introdruced in previous.

Found the hardway and diff from weerd@

Deactivate the device if I/O fails in attach.

Coverity CID 1453399; ok deraadt@

Setting the configuration in *_attach() is a bad practise because if it
fails it's impossible to debug and you cannot use your device.

So instead of calling usbd_set_config_index(), match the right

Setting the configuration in *_attach() is a bad practise because if it
fails it's impossible to debug and you cannot use your device.

So instead of calling usbd_set_config_index(), match the right interface.

This is trivial with this device because it has only one configuration
and interface.

show more ...

It's not possible to call umcs_get_status() in interrupt context
because it submits synchronous transfers, so schedule a task when
necessary.

Remove some includes include-what-you-use claims don't
have any direct symbols used. Tested for indirect use by compiling
amd64/i386/sparc64 kernels.

ok tedu@ deraadt@

Driver for MosChip Semiconductor 78x0 USB multiport serial adapters.

Ported from FreeBSD via NetBSD, tested on a ST Lab U-400 provided by
weerd@.

ok jsg@