Date: Tue, 21 Jan 2003 02:01:36 -0500 (EST) From: Kenneth Culver <culverk@yumyumyum.org> To: Nate Lawson <nate@root.org> Cc: freebsd-current@FreeBSD.ORG Subject: Re: FreeBSD panic with umass Message-ID: <20030121015437.I18263-100000@alpha.yumyumyum.org> In-Reply-To: <Pine.BSF.4.21.0301202202070.64259-100000@root.org>
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here are a few pointers when you look at the linux driver:
several devices in linux/drivers/usb/storage/unusual_devs.h have the quirk
flag: US_FL_FIX_INQUIRY. in the same directory, searching for
USB_FL_FIX_INQUIRY yields the following in usb.c:
/* Handle those devices which need us to fake
* their inquiry data */
if ((us->srb->cmnd[0] == INQUIRY) &&
(us->flags & US_FL_FIX_INQUIRY)) {
unsigned char data_ptr[36] = {
0x00, 0x80, 0x02, 0x02,
0x1F, 0x00, 0x00, 0x00};
US_DEBUGP("Faking INQUIRY command\n");
fill_inquiry_response(us, data_ptr, 36);
us->srb->result = GOOD << 1;
So unless I'm reading it wrong, this device can't respond to a basic
inquiry :-P
Ken
> I'll take a look at the Linux driver but I'd be very surprised if the
> device can't even respond to a basic inquiry (extended inquiry could
> cause problems).
>
> -Nate
>
>
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