[PATCH 1/6] winebus.sys: Report WINEBUS\WINE_COMP_HID compatible id.
Zebediah Figura (she/her)
zfigura at codeweavers.com
Fri Aug 27 12:43:57 CDT 2021
On 8/26/21 12:58 AM, Rémi Bernon wrote:
> And match it in winehid.sys instead of individual bus ids.
>
> Signed-off-by: Rémi Bernon <rbernon at codeweavers.com>
> ---
> dlls/winebus.sys/main.c | 26 ++++++++++++++++++++++++--
> dlls/winehid.sys/winehid.inf | 7 +------
> 2 files changed, 25 insertions(+), 8 deletions(-)
>
> diff --git a/dlls/winebus.sys/main.c b/dlls/winebus.sys/main.c
> index 41aef8ab018..c09ea1c2828 100644
> --- a/dlls/winebus.sys/main.c
> +++ b/dlls/winebus.sys/main.c
> @@ -226,7 +226,7 @@ static WCHAR *get_device_id(DEVICE_OBJECT *device)
> return dst;
> }
>
> -static WCHAR *get_compatible_ids(DEVICE_OBJECT *device)
> +static WCHAR *get_hardware_ids(DEVICE_OBJECT *device)
> {
> struct device_extension *ext = (struct device_extension *)device->DeviceExtension;
> WCHAR *dst;
> @@ -240,6 +240,28 @@ static WCHAR *get_compatible_ids(DEVICE_OBJECT *device)
> return dst;
> }
>
> +static WCHAR *get_compatible_ids(DEVICE_OBJECT *device)
> +{
> + static const WCHAR hid_compat[] =
> + {
> + 'W','I','N','E','B','U','S','\\','W','I','N','E','_','C','O','M','P','_','H','I','D',0
> + };
> + DWORD pos = 0, len = 0, hid_compat_len;
> + WCHAR *dst;
> +
> + hid_compat_len = strlenW(hid_compat);
> +
> + len += hid_compat_len + 1;
> +
> + if ((dst = ExAllocatePool(PagedPool, (len + 1) * sizeof(WCHAR))))
> + {
> + pos += snprintfW(dst + pos, len - pos, hid_compat) + 1;
Why snprintfW() and not memcpy()? Note that memcpy() would also allow
you to use sizeof().
> + dst[pos] = 0;
> + }
> +
> + return dst;
> +}
> +
There are a few redundancies in this function. It's kind of justified by
2/6, but maybe it makes more sense to leave off "pos" until that function.
> static void remove_pending_irps(DEVICE_OBJECT *device)
> {
> struct device_extension *ext = device->DeviceExtension;
> @@ -444,7 +466,7 @@ static NTSTATUS handle_IRP_MN_QUERY_ID(DEVICE_OBJECT *device, IRP *irp)
> {
> case BusQueryHardwareIDs:
> TRACE("BusQueryHardwareIDs\n");
> - irp->IoStatus.Information = (ULONG_PTR)get_compatible_ids(device);
> + irp->IoStatus.Information = (ULONG_PTR)get_hardware_ids(device);
> break;
> case BusQueryCompatibleIDs:
> TRACE("BusQueryCompatibleIDs\n");
> diff --git a/dlls/winehid.sys/winehid.inf b/dlls/winehid.sys/winehid.inf
> index f9ed4091217..c1d8a1cf999 100644
> --- a/dlls/winehid.sys/winehid.inf
> +++ b/dlls/winehid.sys/winehid.inf
> @@ -7,12 +7,7 @@ Class=HIDClass
> Wine=mfg_section
>
> [mfg_section]
> -Wine hidraw device=device_section,HIDRAW
> -Wine IOHID device=device_section,IOHID
> -Wine libevent device=device_section,LNXEV
> -Wine SDL HID device=device_section,SDLJOY
> -Wine mouse device=device_section,WINEMOUSE
> -Wine keyboard device=device_section,WINEKEYBOARD
> +Wine HID compatible device=device_section,WINEBUS\WINE_COMP_HID
>
> [device_section.Services]
> AddService = winehid,0x2,svc_section
>
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