Date: Thu, 12 Nov 2015 09:31:26 +0100 From: Hans Petter Selasky <hps@selasky.org> To: Alfred Perlstein <alfred@freebsd.org>, usb@freebsd.org Subject: Re: usb modem "Can't setup transfer" Message-ID: <56444E5E.1030706@selasky.org> In-Reply-To: <56439C4B.6060407@freebsd.org> References: <5642B7E4.505@freebsd.org> <5642FE24.4050408@selasky.org> <56439C4B.6060407@freebsd.org>
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On 11/11/15 20:51, Alfred Perlstein wrote:
>
Hi,
The device is very special in that it uses an interrupt type of endpoint
for receiving the data.
>
> Endpoint 1
> bLength = 0x0007
> bDescriptorType = 0x0005
> bEndpointAddress = 0x0084 <IN>
> bmAttributes = 0x0003 <INTERRUPT>
> wMaxPacketSize = 0x003f
> bInterval = 0x0002
> bRefresh = 0x0000
> bSynchAddress = 0x0000
>
In umodem.c you might want to change the USB matching filter to accept
interrupt endpoints:
> [UMODEM_BULK_RD] = {
> .type = UE_BULK, // change this to UE_BULK_INTR
> .endpoint = UE_ADDR_ANY,
> .direction = UE_DIR_RX,
This change will break other modem drivers, but at least it will give
some clues if it works or not.
--HPS
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