Dear all: I am developing a USB Wireless adapter driver. I get a problem of interrupt endpoint to deal with EHCI USB host.
The problem always occur every time the interrupt endpoint send a URB with usb_fill_int_urb ( ) and usb_submit_urb ( ), if interrupt interval is set to 1 (125 us). The error message returned by usb_submit_urb is -12. Since our USB wireless NIC supports USB 2.0, therefore, the interrupt interval should be within 125us for best preference. The kernel I used is kernel 2.4.22-1.2115.nptl. Have any one can give me any advice? Thank you ===========================================================================================The privileged confidential information contained in this email is intended for use only by the addressees as indicated by the original sender of this email. If you are not the addressee indicated in this email or are not responsible for delivery of the email to such a person, please kindly reply to the sender indicating this fact and delete all copies of it from your computer and network server immediately. Your cooperation is highly appreciated. It is advised that any unauthorized use of confidential information of Winbond is strictly prohibited; and any information in this email irrelevant to the official business of Winbond shall be deemed as neither given nor endorsed by Winbond. ===========================================================================================If your computer is unable to decode Chinese font, please ignore the following message.It essentially repeats the statement in English given above.¥»«H¥ó¤º©Ò§tµØ¨¹¹q¤lªº°]²£©Ê¾÷±K©Ê¸ê°T, ¶È±ÂÅvìµo«H¤H«ü©w¤§¦¬«H¤H¨ú¾\\¤§¥Î. °²¨Ï±z¨Ã«D³Q«ü©w¤§¦¬«H¤H©Î¦]¥ô¦óì¦]¦b¥¼¸g±ÂÅvªº±¡§Î¤§¤U¦¬¨ì¥»«H¥ó, ½Ð±z§iª¾ìµo«H¤H¨Ã¥ß§Y±N«H¥ó±q¹q¸£»Pºô¸ô¦øªA¾¹¤¤¤©¥H®ø°£. ¹ï©ó±zªº¦X§@, §ÚÌ¥ý¦¹PÁÂ. ¯S¦¹´£¿ô, ¥ô¦ó¥¼¸g±ÂÅv¾Õ¦Û¨Ï¥ÎµØ¨¹¹q¤lªº¾÷±K¸ê°Tªº¦æ¬°¬O³QÄY®æ¸T¤îªº. «H¥ó»PµØ¨¹¹q¤lÀç·~µLÃö¤§¤º®e,¤£±oµø¬°µØ¨¹¹q¤l¤§¥ß³õ©Î·N¨£. ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id492&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
