struct
(struct hid-device-info ( path
vendor-id
product-id
serial-number
release-number
manufacturer-string
product-string
usage-page
usage
interface-number))
path:path?
vendor-id:integer?
product-id:integer?
serial-number:string?
release-number:integer?
manufacturer-string:string?
product-string:string?
usage-page:integer?
usage:integer?
interface-number:integer?

A racket structure corresponding to foreign structure hid_device_info.

procedure
( hid-device? d)→boolean?
d:any/c

Returns #t if it is a hid_device, #f otherwise.

procedure
( hid-init )→void?

Binding to hid_init. Might raise exception exn:fail .

procedure
( hid-exit )→void?

Binding to hid_exit. Might raise exception exn:fail .

procedure
( hid-enumerate [ #:vendor-idv
#:product-idp]) → (listof hid-device-info? )
v:integer? =0
p:integer? =0

High-level safe binding to hid_enumerate. The foreign allocated data is free’d with hid_free_enumeration.

procedure
( hid-open #:vendor-idv
#:product-idp
#:serial-numbers) → (or/c hid-device? #f)
v:integer?
p:integer?
s:string?

Binding to hid_open.

procedure
( hid-open-path p)→(or/c hid-device? #f)
p:path?

Binding to hid_open_path.

procedure
( hid-set-nonblocking db)→void?
d:hid-device?
b:boolean?

Binding to hid_set_nonblocking. Might raise exception exn:fail .

procedure
( hid-close d)→void?
d:hid-device?

Binding to hid_close.

procedure
( hid-write dbstrsize)→integer?
d:hid-device?
bstr:bytes?
size:integer?

Binding to hid_write. Might raise exception exn:fail .

procedure
( hid-write-full dbstr)→integer?
d:hid-device?
bstr:bytes?

Same as (hid-write bstr(bytes-length bstr)).

procedure
( hid-read dbstrsize)→integer?
d:hid-device?
bstr:bytes?
size:integer?

Binding to hid_read. Might raise exception exn:fail .

procedure
( hid-read-bytes dsize)→bytes?
d:hid-device?
size:integer?

Same as (hid-read d(make-bytes size)size), returns the created bytestring.

procedure
( hid-read-timeout dbstrsizemillis)→integer?
d:hid-device?
bstr:bytes?
size:integer?
millis:integer?

Binding to hid_read_timeout. Might raise exception exn:fail .

procedure
( hid-read-bytes/timeout dsizemillis)→bytes?
d:hid-device?
size:integer?
millis:integer?

Binding to (hid-read-timeout d(make-bytes size)sizemillis), returns the created bytestring.

procedure
( hid-get-feature-report dbstrsize)→integer?
d:hid-device?
bstr:bytes?
size:integer?

Binding to hid_get_feature_report. Might raise exception exn:fail .

procedure
( hid-send-feature-report dbstrsize)→integer?
d:hid-device?
bstr:bytes?
size:integer?

Binding to hid_send_feature_report. Might raise exception exn:fail .

procedure
( hid-get-manufacturer-string dsize)→string?
d:hid-device?
size:integer?

Binding to hid_get_manufacturer_string. Might raise exception exn:fail .

procedure
( hid-get-product-string dsize)→string?
d:hid-device?
size:integer?

Binding to hid_get_product_string. Might raise exception exn:fail .

procedure
( hid-get-serial-number-string dsize)→string?
d:hid-device?
size:integer?

Binding to hid_get_serial_number_string. Might raise exception exn:fail .

procedure
( hid-get-indexed-string didxsize)→string?
d:hid-device?
idx:integer?
size:integer?

Binding to hid_get_indexed_string. Might raise exception exn:fail .

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