diff options
| author | Hans de Goede <[email protected]> | 2013-07-12 10:04:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2013-07-25 12:01:12 -0700 |
| commit | 5dc50c357d5ce8f78e148d20a38e4e66b12d550f (patch) | |
| tree | 14d7ff181b9f2c4c5df485953fafe1ffccf56f50 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | aaf6b52d50f85ed792c9c8987f5169f3dce2adea (diff) | |
usbfs: Allow printer class 'get_device_id' without needing to claim the intf
For certain (HP) printers the printer device_id does not only contain a
static part identifying the printer, but it also contains a dynamic part
giving printer status, ink level, etc.
To get to this info various userspace utilities need to be able to make a
printer class 'get_device_id' request without first claiming the interface
(as that is in use for the actual printer driver).
Since the printer class 'get_device_id' request does not change interface
settings in anyway, allowing this without claiming the interface should not
cause any issues.
CC: Sanjay Kumar <[email protected]>
CC: Alan Stern <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions