From: Martin Roukala (né Peres) Date: Mon, 9 Mar 2026 13:53:10 +0000 (+0200) Subject: serial: 8250_pci: add support for the AX99100 X-Git-Tag: v7.0-rc5~16^2~8 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c0072bc33d349c83d223e64be30794e11938a6b;p=thirdparty%2Flinux.git serial: 8250_pci: add support for the AX99100 This is found in popular brands such as StarTech.com or Delock, and has been a source of frustration to quite a few people, if I can trust Amazon comments complaining about Linux support via the official out-of-the-tree driver. Signed-off-by: Martin Roukala (né Peres) Cc: stable Link: https://patch.msgid.link/20260309-8250_pci_ax99100-v1-1-3328bdfd8e94@mupuf.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index aa1ab4da9ff1..6cfd1b2af5b7 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -137,6 +137,8 @@ struct serial_private { }; #define PCI_DEVICE_ID_HPE_PCI_SERIAL 0x37e +#define PCIE_VENDOR_ID_ASIX 0x125B +#define PCIE_DEVICE_ID_AX99100 0x9100 static const struct pci_device_id pci_use_msi[] = { { PCI_DEVICE_SUB(PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900, @@ -149,6 +151,8 @@ static const struct pci_device_id pci_use_msi[] = { 0xA000, 0x1000) }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_HP_3PAR, PCI_DEVICE_ID_HPE_PCI_SERIAL, PCI_ANY_ID, PCI_ANY_ID) }, + { PCI_DEVICE_SUB(PCIE_VENDOR_ID_ASIX, PCIE_DEVICE_ID_AX99100, + 0xA000, 0x1000) }, { } }; @@ -920,6 +924,7 @@ static int pci_netmos_init(struct pci_dev *dev) case PCI_DEVICE_ID_NETMOS_9912: case PCI_DEVICE_ID_NETMOS_9922: case PCI_DEVICE_ID_NETMOS_9900: + case PCIE_DEVICE_ID_AX99100: num_serial = pci_netmos_9900_numports(dev); break; @@ -2544,6 +2549,14 @@ static struct pci_serial_quirk pci_serial_quirks[] = { .init = pci_netmos_init, .setup = pci_netmos_9900_setup, }, + { + .vendor = PCIE_VENDOR_ID_ASIX, + .device = PCI_ANY_ID, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .init = pci_netmos_init, + .setup = pci_netmos_9900_setup, + }, /* * EndRun Technologies */ @@ -6065,6 +6078,10 @@ static const struct pci_device_id serial_pci_tbl[] = { 0xA000, 0x3002, 0, 0, pbn_NETMOS9900_2s_115200 }, + { PCIE_VENDOR_ID_ASIX, PCIE_DEVICE_ID_AX99100, + 0xA000, 0x1000, + 0, 0, pbn_b0_1_115200 }, + /* * Best Connectivity and Rosewill PCI Multi I/O cards */