Re: [Libusb-devel] [libusb] #86: [PATCH] reduce log spew on certain darwin configurations

[libusb T. <tr...@li...>]

#86: [PATCH] reduce log spew on certain darwin configurations
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  Reporter:  www.google.com/accounts/o8/id?id=aitoawmz93igogrpknbehv21jdxrf37ft8ksncg  |        Owner:     
      Type:  enhancement                                                               |       Status:  new
 Component:  libusb-1.0                                                                |   Resolution:     
  Keywords:                                                                            |       Blocks:     
Blocked By:                                                                            |  
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Comment (by hjelmn):

 The patch needs some tweeks/more info:
  - A USB device does not need to be opened to get the device descriptor
 unless it needs to be unsuspended first. In most (all?) cases IOKit
 returns a cached copy of the descriptor when DeviceRequest is called with
 with the kUSBRqGetDescriptor request.
  - Please do not use c++ style // comments. These should be changed to the
 ANSI C /* */ style.
  - Is there an actual scenario where DeviceRequest returns
 kIOReturnNotResponding when using kUSBRqGetDescriptor (I haven't seen
 this)? As mentioned above, IOKit does not actually issue a request to the
 device so this return code should not be seen in this case.

-- 
Ticket URL: <http://libusb.org/ticket/86#comment:2>
libusb <http://libusb.org/>
C library for writing portable USB drivers in userspace