Date: Fri, 17 Jan 2003 09:40:00 -0800 (PST) From: Josef Karthauser <joe@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/usb usb_subr.c Message-ID: <200301171740.h0HHe05c001017@repoman.freebsd.org>
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joe 2003/01/17 09:40:00 PST
Modified files: (Branch: RELENG_4)
sys/dev/usb usb_subr.c
Log:
MFC: revision 1.54
Some USB devices are not prepared to deal with a single byte string
descriptor request, which usbd_get_string_desc() uses to get the
length of a descriptor. One device for instance returns a full 8
byte long packet instead which confuses the rest of the stack and
leads to the USB port being reset. The fix is to instead request
two bytes, but not to complain if we only get one.
Revision Changes Path
1.23.2.7 +8 -2 src/sys/dev/usb/usb_subr.c
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