Detect a USB Device
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From: USB Device User on 25 May 2010 18:18 Yes, I did. I can pass Null to enumerate all devices. But which api call should I use to get VID/PID? "Pavel A." wrote: > "USB Device User" <USBDeviceUser(a)discussions.microsoft.com> wrote in message > news:60FB1C84-C1E3-42EA-9848-9B67D9F0D96F(a)microsoft.com... > > I tried SetupDi functions. It is easy for HID to get GUID and VID/PID. But > > for general USB device, how can I get GUID and VID/PID from the api calls? > > Have you tried SetupDiGetClassDevs ? > -- pa > > > "Philip Ries [MSFT]" wrote: > > > >> One way is via Setup API (it's a managed API so you will have to PInvoke > >> it). Start with function SetupDiGetClassDevs. > >> > >> USB Device User wrote: > >> > BTW, I am trying to use winapi calls not wmi. > >> > > >> > "USB Device User" wrote: > >> > > >> >> I have a USB printer and I know its vendor ID and product ID. How can > >> >> I know > >> >> it is connected from my C# application? > >> . > >>
From: Maxim S. Shatskih on 26 May 2010 05:54 > Yes, I did. I can pass Null to enumerate all devices. But which api call > should I use to get VID/PID? SetupDiGetDeviceRegistryProperty returns a hardware ID. And there is a doc page about how the USB HW IDs are composed from VID/PID. -- Maxim S. Shatskih Windows DDK MVP maxim(a)storagecraft.com http://www.storagecraft.com
From: Tim Roberts on 28 May 2010 02:25 "Maxim S. Shatskih" <maxim(a)storagecraft.com.no.spam> wrote: > >> Yes, I did. I can pass Null to enumerate all devices. But which api call >> should I use to get VID/PID? > >SetupDiGetDeviceRegistryProperty returns a hardware ID. > >And there is a doc page about how the USB HW IDs are composed from VID/PID. Is there? The format has not changed since Windows 95 OSR2, but I thought it was officially undocumented. Do you remember which page this is on? -- Tim Roberts, timr(a)probo.com Providenza & Boekelheide, Inc.
From: Wilhelm Noeker on 28 May 2010 03:15 Tim Roberts wrote: > "Maxim S. Shatskih" <maxim(a)storagecraft.com.no.spam> wrote: >>> Yes, I did. I can pass Null to enumerate all devices. But which api call >>> should I use to get VID/PID? >> SetupDiGetDeviceRegistryProperty returns a hardware ID. >> >> And there is a doc page about how the USB HW IDs are composed from VID/PID. > > Is there? The format has not changed since Windows 95 OSR2, but I thought > it was officially undocumented. Do you remember which page this is on? I recently stumbled into it in a section titled "Enumeration of USB Composite Devices": http://msdn.microsoft.com/en-us/library/ff537109%28VS.85%29.aspx
From: Maxim S. Shatskih on 28 May 2010 09:16
> Is there? The format has not changed since Windows 95 OSR2 There was an MSDN page somewhere which documents the PnP IDs layout for all common buses. -- Maxim S. Shatskih Windows DDK MVP maxim(a)storagecraft.com http://www.storagecraft.com |