[9fans] usb/disk and micro SD cards.

[9fans] usb/disk and micro SD cards.

[Steve Simon]

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?

-Steve

Re: [9fans] usb/disk and micro SD cards.

[erik quanstrom]

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