Add a new PCI vendor ID (PCI_VENDOR_ID_ASMEDIA_USB4) for ASMedia
USB4 devices. This change enables proper identification and support
for ASMedia USB4 hardware in the kernel.

Co-developed-by: Sanath S <Sanath.S@amd.com>
Signed-off-by: Sanath S <Sanath.S@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
---
 include/linux/pci_ids.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index e2d71b6fdd84..3397954ce96e 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2592,6 +2592,7 @@
 #define PCI_SUBDEVICE_ID_QEMU            0x1100
 
 #define PCI_VENDOR_ID_ASMEDIA		0x1b21
+#define PCI_VENDOR_ID_ASMEDIA_USB4	0x174C
 
 #define PCI_VENDOR_ID_REDHAT		0x1b36
 
-- 
2.34.1

On Tue, Jul 22, 2025 at 11:20:25PM +0530, Raju Rangoju wrote:
> Add a new PCI vendor ID (PCI_VENDOR_ID_ASMEDIA_USB4) for ASMedia
> USB4 devices. This change enables proper identification and support
> for ASMedia USB4 hardware in the kernel.
> 
> Co-developed-by: Sanath S <Sanath.S@amd.com>
> Signed-off-by: Sanath S <Sanath.S@amd.com>
> Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
> ---
>  include/linux/pci_ids.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> index e2d71b6fdd84..3397954ce96e 100644
> --- a/include/linux/pci_ids.h
> +++ b/include/linux/pci_ids.h
> @@ -2592,6 +2592,7 @@
>  #define PCI_SUBDEVICE_ID_QEMU            0x1100
>  
>  #define PCI_VENDOR_ID_ASMEDIA		0x1b21
> +#define PCI_VENDOR_ID_ASMEDIA_USB4	0x174C
>  
>  #define PCI_VENDOR_ID_REDHAT		0x1b36

Sort by Vendor ID value (not the name), per the comment at the top.

Use lower-case hex to match style (not universally observed, but
close).

Per https://pcisig.com/membership/member-companies, 0x174c is not
reserved, although the same is true for 0x1b21 and many other Vendor
IDs.  Do you know the history of 0x174c and 0x1b21, or why these don't
show up as reserved?

With these,

Acked-by: Bjorn Helgaas <bhelgaas@google.com>

Bjorn

On 7/23/2025 12:44 AM, Bjorn Helgaas wrote:
> On Tue, Jul 22, 2025 at 11:20:25PM +0530, Raju Rangoju wrote:
>> Add a new PCI vendor ID (PCI_VENDOR_ID_ASMEDIA_USB4) for ASMedia
>> USB4 devices. This change enables proper identification and support
>> for ASMedia USB4 hardware in the kernel.
>>
>> Co-developed-by: Sanath S <Sanath.S@amd.com>
>> Signed-off-by: Sanath S <Sanath.S@amd.com>
>> Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
>> ---
>>   include/linux/pci_ids.h | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
>> index e2d71b6fdd84..3397954ce96e 100644
>> --- a/include/linux/pci_ids.h
>> +++ b/include/linux/pci_ids.h
>> @@ -2592,6 +2592,7 @@
>>   #define PCI_SUBDEVICE_ID_QEMU            0x1100
>>   
>>   #define PCI_VENDOR_ID_ASMEDIA		0x1b21
>> +#define PCI_VENDOR_ID_ASMEDIA_USB4	0x174C
>>   
>>   #define PCI_VENDOR_ID_REDHAT		0x1b36
> 
> Sort by Vendor ID value (not the name), per the comment at the top.
> 
> Use lower-case hex to match style (not universally observed, but
> close).

Sure Bjorn, I'll address these changes in v2.

> 
> Per https://pcisig.com/membership/member-companies, 0x174c is not
> reserved, although the same is true for 0x1b21 and many other Vendor
> IDs.  Do you know the history of 0x174c and 0x1b21, or why these don't
> show up as reserved?

Chloe_Chen@asmedia.com.tw, could you please comment here?

> 
> With these,
> 
> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
> 
> Bjorn