Date: Tue, 10 Nov 2015 19:37:08 -0800 From: Alfred Perlstein <alfred@freebsd.org> To: usb@freebsd.org Subject: usb modem "Can't setup transfer" Message-ID: <5642B7E4.505@freebsd.org>
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Hello, A friend gave me a usb modem recently. The model is: Multi-Tech Systems - Multi-Modem USB - MT5634ZBA The Linux driver info is here: ftp://ftp.multitech.com/usb/usb-linux2.txt When I plug this device into FreeBSD I get a ugen0 device. So I tried hacking into the driver itself: diff --git a/sys/dev/usb/serial/umodem.c b/sys/dev/usb/serial/umodem.c index c1e8812..9886294 100644 --- a/sys/dev/usb/serial/umodem.c +++ b/sys/dev/usb/serial/umodem.c @@ -136,6 +136,7 @@ static const STRUCT_USB_HOST_ID umodem_host_devs[] = { {USB_VPI(USB_VENDOR_KYOCERA, USB_PRODUCT_KYOCERA_AHK3001V, 1)}, {USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5720, 1)}, {USB_VPI(USB_VENDOR_CURITEL, USB_PRODUCT_CURITEL_PC5740, 1)}, + {USB_VP(0x06e0, 0xf107)}, }; /* Now I get the following: Nov 10 19:19:54 spigot kernel: ugen3.3: <Multi-Tech Systems, Inc.> at usbus3 Nov 10 19:19:54 spigot kernel: umodem0: <Multi-Tech Win95 Modem USB> on usbus3 Nov 10 19:19:54 spigot kernel: umodem0: data interface 1, has CM over data, has no break Nov 10 19:19:54 spigot kernel: umodem0: Can't setup transfer Nov 10 19:19:54 spigot kernel: device_attach: umodem0 attach returned 6 I read the Linux driver and it seems pretty similar, although it does look like they have a ton more quirks and edge cases the handle. The file in Linux I'm looking at is: linux/drivers/usb/class/cdc-acm.c (this seems to make the most sense given the instructions given at ftp://ftp.multitech.com/usb/usb-linux2.txt). I tried turning on sysctl hw.usb.debug=10 however after doing so it didn't seem to want to probe anymore. Any ideas? I can ship this modem to someone if they are interested and have a good idea how to fix. thank you, -Alfred
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