This series adds support for polling and non-blocking read for hwdep interface. This allows apps to listen to HW events without using busy loop. Example of app that uses hwdep interface for POD HD500 can be found here: https://github.com/anarsoul/line6_hwdep_test Vasily Khoruzhick (2): ALSA: line6: hwdep: add support for O_NONBLOCK opening mode ALSA: line6: Add poll callback for hwdep sound/usb/line6/driver.c | 20 ++++++++++++++++++++ sound/usb/line6/driver.h | 1 + 2 files changed, 21 insertions(+) -- 2.26.2
