From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@9fans.net
Subject: Re: [9fans] usb/disk and micro SD cards.
Date: Thu, 5 Feb 2015 08:08:11 -0800 [thread overview]
Message-ID: <92dacd1670d327798224a9f187a80663@brasstown.quanstro.net> (raw)
In-Reply-To: <46a7af2258e5356f71cedd7afad8354e@quintile.net>
On Thu Feb 5 03:29:11 PST 2015, steve@quintile.net wrote:
> I am trying to use some micro sd cards with plan9.
> Thse are kingston SDC4/4Gbsp cards (4Gb) for embedded stuff.
>
> usbfat: won't recognise them and usb/disk with debug on grumbles
>
> 8.out: startdevs: opening #0 /dev/usb/ep7.0
> 8.out: opendev 0x4b618 /dev/usb/ep7.0
> 8.out: /dev/usb/ep7.0: warning: device with short descriptor
> 8.out: /dev/usb/ep7.0: no configurations
> 8.out: /dev/usb/ep7.0 csp none.0.0 vid 0x14cd did 0x1212 refs 1
> Generic Mass Storage Device 121220130416
> disk: ep ids: in -1 out -1
> 8.out: closedev 0x4b618 /dev/usb/ep7.0
> 8.out: devmain: disk: endpoints not found
> 8.out: no unhandled devices found
>
>
> The type of the card (ep->type) is 0 (Control) rather than 2 (Bulk) by I don't
> know how this can happen. Windows is happy so the cards are not sick.
>
> anyone any ideas?
i did a lot of work a few months ago to take more care with usb
descriptors. you might try the 9atom version. contact me off list for
additional info if there are issues.
- erik
prev parent reply other threads:[~2015-02-05 16:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-05 11:34 Steve Simon
2015-02-05 16:08 ` erik quanstrom [this message]
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