Commit 6149ed5e authored by Iain McFarlane's avatar Iain McFarlane Committed by Greg Kroah-Hartman
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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: default avatarIain McFarlane <iain@imcfarla.homelinux.net>
Acked-by: default avatarOliver Neukum <oneukum@suse.de>
Cc: stable <stable@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 4c7d3137
......@@ -1248,6 +1248,9 @@ static struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0x22b8, 0x7000), /* Motorola Q Phone */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
{ USB_DEVICE(0x0803, 0x3095), /* Zoom Telephonics Model 3095F USB MODEM */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
/* control interfaces with various AT-command sets */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
......
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