HX5424: DF-5424 uftdi cfg-chain stall harness, hz=100, 3 reqs/param-task, 2 reqs/open-task, 1000 ms/request
HX5424: cfg-open task: enter, 2 x 1000 ms sync EP0 requests
HX5424[A]: closer: queue cfg_close + usb_proc_mwait() (uninterruptible, usb_serial.c:671-672) behind 1 param task(s)
HX5424: cfg-open task: leave
HX5424: cfg-param task: enter, 3 x 1000 ms sync EP0 requests
HX5424: cfg-param task: leave (3/3 requests issued)
HX5424: cfg-close task: enter+leave (uftdi has no ucom_cfg_close callback)
HX5424[A]: closer: unblocked  ELAPSED=5015 ms
HX5424: cfg-open task: enter, 2 x 1000 ms sync EP0 requests
HX5424[2]: closer: queue cfg_close + usb_proc_mwait() (uninterruptible, usb_serial.c:671-672) behind 2 param task(s)
HX5424: cfg-open task: leave
HX5424: cfg-param task: enter, 3 x 1000 ms sync EP0 requests
HX5424: cfg-param task: leave (3/3 requests issued)
HX5424: cfg-param task: enter, 3 x 1000 ms sync EP0 requests
HX5424: cfg-param task: leave (3/3 requests issued)
HX5424: cfg-close task: enter+leave (uftdi has no ucom_cfg_close callback)
HX5424[2]: closer: unblocked  ELAPSED=8139 ms
HX5424: cfg-open task: enter, 2 x 1000 ms sync EP0 requests (fix: abort on first error)
HX5424[B]: closer: queue cfg_close + usb_proc_mwait() (uninterruptible, usb_serial.c:671-672) behind 1 param task(s)
HX5424: cfg-open: request 1/2 failed (USB_ERR_TIMEOUT) -> abort chain (fixed)
HX5424: cfg-open task: leave
HX5424: cfg-param task: enter, 3 x 1000 ms sync EP0 requests (fix: abort on first error)
HX5424: cfg-param: request 1/3 failed (USB_ERR_TIMEOUT) -> abort chain (fixed)
HX5424: cfg-param task: leave (1/3 requests issued)
HX5424: cfg-close task: enter+leave (uftdi has no ucom_cfg_close callback)
HX5424[B]: closer: unblocked  ELAPSED=2116 ms
HX5424: harness complete