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USB version is 1.10?!
- From: Sergei Organov <osv at javad dot ru>
- To: ecos-discuss at sources dot redhat dot com
- Date: 25 Nov 2002 12:27:54 +0300
- Subject: [ECOS] USB version is 1.10?!
In the file 'packages/io/usb/common/current/include/usb.h' one reads:
#define USB_DEVICE_DESCRIPTOR_USB11_LO 0x10
#define USB_DEVICE_DESCRIPTOR_USB11_HI 0x01
However, in the "Universal Serial Bus Specification Revision 1.1" on p.197 one
can read:
Field Size Value Description
bcdUSB 2 BCD USB Specification Release Number in Binary-Coded
Decimal (i.e., 2.10 is 210H). This field identifies
the release of the USB Specification with which the
device and its descriptors are compliant.
Please note the example: 0x210 is 2.10. Therefore, eCos definition 0x110 means
USB Specification Release Number 1.10? Shouldn't it be 0x101 instead?
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