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ums(4): Start USB xfers on opening of evdev node unconditionally.

Description

ums(4): Start USB xfers on opening of evdev node unconditionally.

This fixes inability to start USB xfers in a case when FIFO has been
already open()-ed but no read() or poll() calls has been issued yet.

MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D30343

(cherry picked from commit 47791339f0cfe3282a6f64b5607047f7bca968ad)

Details

Provenance
wulfAuthored on May 23 2021, 10:41 PM
Differential Revision
D30343: ums(4): Start USB xfers on opening of evdev node unconditionally.
Parents
rGa303f4b1c1d3: usbhid(4): Add second set of USB transfers to work in polled mode.
Branches
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