linux-kernel - [PATCH 2/2] Add parport support for Asix device 99100

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Date:   Sat, 06 Aug 2022 13:31:26 +0200
From:   Alexander Baehr <abaehr@...dl.org>
To:     Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] Add parport support for Asix device 99100

For some reason, Asix decided to produce a parallel port that is fully
compatible with Netmos device 9900, but named it 99100. It obviously has
another vendor ID, but the device ID is the same. This patch adds the 
required settings and was successfully tested with the Asix device. 

Signed-off-by: Alexander Baehr <abaehr@...dl.org>
---
 drivers/parport/parport_pc.c |    4 ++++
 include/linux/pci_ids.h      |    3 +++
 2 files changed, 7 insertions(+)

Index: linux/drivers/parport/parport_pc.c
===================================================================
--- linux.orig/drivers/parport/parport_pc.c
+++ linux/drivers/parport/parport_pc.c
@@ -2612,6 +2612,7 @@ enum parport_pc_pci_cards {
 	netmos_9815,
 	netmos_9901,
 	netmos_9865,
+	asix_ax99100,
 	quatech_sppxp100,
 	wch_ch382l,
 };
@@ -2766,6 +2767,9 @@ static const struct pci_device_id parpor
 	  0xA000, 0x1000, 0, 0, netmos_9865 },
 	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9865,
 	  0xA000, 0x2000, 0, 0, netmos_9865 },
+	/* Asix AX99100 Parallel port PCIExpressCard */
+	{ PCI_VENDOR_ID_ASIX, PCI_DEVICE_ID_AX99100,
+	  0xA000, 0x2000, 0, 0, netmos_9900 },
 	/* Quatech SPPXP-100 Parallel port PCI ExpressCard */
 	{ PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_SPPXP_100,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, quatech_sppxp100 },
Index: linux/include/linux/pci_ids.h
===================================================================
--- linux.orig/include/linux/pci_ids.h
+++ linux/include/linux/pci_ids.h
@@ -3108,4 +3108,7 @@
 
 #define PCI_VENDOR_ID_NCUBE		0x10ff
 
+#define PCI_VENDOR_ID_ASIX		0x125b
+#define PCI_DEVICE_ID_AX99100		0x9100
+
 #endif /* _LINUX_PCI_IDS_H */