jepler/greaseweazle
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

usb: Let NoClickStep fail silently in Unit.seek() error path.

Browse source
This commit is contained in:
Keir Fraser 2022-02-09 16:00:55 +00:00
parent ffdecb17bc
commit f155a3dcbf
1 changed files with 6 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
scripts/greaseweazle/usb.py
View file

@ -226,7 +226,12 @@ class Unit:
# which may not assert the /TRK0 signal when stepping *inward*
# from cylinder -1. We can check this by attempting a fake outward
# step, which is exactly NoClickStep's purpose.
self._send_cmd(struct.pack("2B", Cmd.NoClickStep, 2))
try:
self._send_cmd(struct.pack("2B", Cmd.NoClickStep, 2))
except CmdError:
# NoClickStep is "best effort" and we're on a likely error
# path anyway. Let it fail silently.
pass
trk0 = not self.get_pin(26) # now re-sample /TRK0
error.check(cyl < 0 or (cyl == 0) == trk0,
"Track0 signal %s after seek to cylinder %d"