개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

usb_get_string_descr(9f)

usb_get_string_descr(9F)       Kernel Functions       usb_get_string_descr(9F)



NAME
       usb_get_string_descr - Get string descriptor from device

SYNOPSIS
       #include <sys/usb/usba.h>

       int usb_get_string_descr(dev_info_t *dip,
            uint16_t langid, uint8_t index,
            char *buf, size_t buflen);

INTERFACE LEVEL
       Solaris DDI specific (Solaris DDI)

PARAMETERS
       dip       Pointer to the device's dev_info structure.


       langid    Language  ID.  Currently  only USB_LANG_ID (English ascii) is
                 valid.


       index     String index indicating descriptor to retrieve.


       buf       Address into which the string descriptor is placed.


       buflen    Size of buf in bytes.


DESCRIPTION
       The usb_get_string_descr() function retrieves a parsed string  descrip‐
       tor  from  a  device.  dip  specifies the device, while index indicates
       which descriptor to return.


       String descriptors provide  information  about  other  descriptors,  or
       information  that  is  encoded  in other descriptors, in readable form.
       Many descriptor types have one or  more  index  fields  which  identify
       string descriptors. (See Sections 9.5 and 9.6 of the USB 2.0 specifica‐
       tion.) For example, a configuration descriptor's seventh byte  contains
       the string descriptor index describing a specific configuration.


       Retrieved  descriptors that do not fit into buflen bytes are truncated.
       All returned descriptors are null-terminated.

RETURN VALUES
       USB_SUCCESS         String descriptor is returned in buf.


       USB_INVALID_ARGS    dip or buf are NULL, or index or buflen is 0.


       USB_FAILURE         Descriptor cannot be retrieved.


CONTEXT
       May be called from user or kernel context.

EXAMPLES
            /* Get the first string descriptor. */

             char buf[SIZE];

             if (usb_get_string_descr(
                 dip, USB_LANG_ID, 0, buf, SIZE) == USB_SUCCESS) {
                     cmn_err (CE_NOTE, "%s%d: %s",
                         ddi_driver_name(dip), ddi_get_instance(dip), buf);
             }


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE  TYPEAT‐
       TRIBUTE  VALUE  _  ArchitecturePCI-based systems _ Interface Stability‐
       Committed _ Availabilitysystem/io/usb


SEE ALSO
       attributes(7), usb_get_dev_data(9F), usb_string_descr(9S)



Oracle Solaris 11.4               5 Jan 2004          usb_get_string_descr(9F)