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USB: add Zoom Telephonics Model 3095F V.92 USB Mini External modem to cdc-acm
The patch below is a necessary workaround to support the Zoom Telephonics Model 3095F V.92 USB Mini External modem, which fails to initialise properly during normal probing thus: May 3 22:53:00 imcfarla kernel: drivers/usb/class/cdc-acm.c: Zero length descriptor references May 3 22:53:00 imcfarla kernel: cdc_acm: probe of 5-2:1.0 failed with error -22 Adding the patch below causes the probing section to be skipped, and the modem then initialises correctly. Signed-off-by: Iain McFarlane <iain@imcfarla.homelinux.net> Acked-by: Oliver Neukum <oneukum@suse.de> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -1248,6 +1248,9 @@ static struct usb_device_id acm_ids[] = {
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{ USB_DEVICE(0x22b8, 0x7000), /* Motorola Q Phone */
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.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
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},
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{ USB_DEVICE(0x0803, 0x3095), /* Zoom Telephonics Model 3095F USB MODEM */
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.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
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},
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/* control interfaces with various AT-command sets */
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{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
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