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usb/net/asix_devices: Add USBNET HG20F9 ethernet dongle

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This USB ethernet adapter was purchased in anodyne packaging
from the computer store adjacent to linux.conf.au 2013 in
Canberra (Australia). A web search shows other recent
purchasers in Lancaster (UK) and Seattle (USA). Just like an
emergent virus, our age of e-commerce and airmail allows
underdocumented hardware to spread around the world instantly
using the vector of ridiculously low prices.

Paige Thompson, infected via eBay, discovered that the HG20F9
is a copy of the Asix 88772B; many viruses copy the RNA of
other viruses. See Paige's work at
<https://github.com/paigeadele/HG20F9>.
This patch uses her discovery to update the restructured Asix
driver in the current kernel.

Just as some viruses inhabit seemingly-healthy cells, the
HG20F9 uses the Vendor ID 0x066b assigned to Linksys Inc.
For the present there is no clash of Product ID 0x20f9.

Signed-off-by: Glen Turner <gdt@gdt.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Glen Turner 2013-02-27 04:32:36 +00:00 committed by David S. Miller
parent 1f84eab4ad
commit 45af3fb4a0
1 changed files with 31 additions and 0 deletions
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31
drivers/net/usb/asix_devices.c
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@ -924,6 +924,29 @@ static const struct driver_info ax88178_info = {
.tx_fixup = asix_tx_fixup,
};
/*
* USBLINK 20F9 "USB 2.0 LAN" USB ethernet adapter, typically found in
* no-name packaging.
* USB device strings are:
* 1: Manufacturer: USBLINK
* 2: Product: HG20F9 USB2.0
* 3: Serial: 000003
* Appears to be compatible with Asix 88772B.
*/
static const struct driver_info hg20f9_info = {
.description = "HG20F9 USB 2.0 Ethernet",
.bind = ax88772_bind,
.unbind = ax88772_unbind,
.status = asix_status,
.link_reset = ax88772_link_reset,
.reset = ax88772_reset,
.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
FLAG_MULTI_PACKET,
.rx_fixup = asix_rx_fixup_common,
.tx_fixup = asix_tx_fixup,
.data = FLAG_EEPROM_MAC,
};
extern const struct driver_info ax88172a_info;
static const struct usb_device_id products [] = {
@ -1063,6 +1086,14 @@ static const struct usb_device_id products [] = {
/* ASIX 88172a demo board */
USB_DEVICE(0x0b95, 0x172a),
.driver_info = (unsigned long) &ax88172a_info,
}, {
/*
* USBLINK HG20F9 "USB 2.0 LAN"
* Appears to have gazumped Linksys's manufacturer ID but
* doesn't (yet) conflict with any known Linksys product.
*/
USB_DEVICE(0x066b, 0x20f9),
.driver_info = (unsigned long) &hg20f9_info,
},
{ }, // END
};