Messages in this thread | | | Date | Thu, 15 Jan 2015 17:47:07 -0600 | Subject | Re: [PATCH] usb: Fix typo in `struct usb_host_interface' comment | From | Chris Rorvick <> |
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On Thu, Jan 15, 2015 at 6:54 AM, Chris Rorvick <chris@rorvick.com> wrote: > On Thu, Jan 15, 2015 at 5:03 AM, Oliver Neukum <oneukum@suse.de> wrote: >> On Wed, 2015-01-14 at 21:52 -0600, Chris Rorvick wrote: >>> The descriptor member `bNumEndpoints' is plural. >> >> I am afraid that is not a good idea. The name of a >> member of a structure mentioned in the specification should >> appear as it is used in the specification. > > Where is it not plural in the specification?
I think understand your comment now so I will respond more specifically: This is a typo precisely because `bNumEndpoint' is not consistent with the specification, nor is it consistent with the definition of `struct usb_interface_descriptor'. The specification and the structure both use `bNumEndpoints'.
Fixing this has utility because `struct usb_interface_descriptor' is not defined in <linux/usb.h>. So, if corrected, the code for determining the number of endpoints is readily available to anyone looking at `struct usb_host_interface' without tracking down the uapi header.
Mentioning that the descriptor member/field is plural was just an attempt to make it easy to see what changed.
Regards,
Chris
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