/* * Driver for USB Mass Storage compliant devices * Protocol Functions Header File * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * * This driver is based on the 'USB Mass Storage Class' document. This * describes in detail the protocol used to communicate with such * devices. Clearly, the designers had SCSI and ATAPI commands in * mind when they created this document. The commands are all very * similar to commands in the SCSI-II and ATAPI specifications. * * It is important to note that in a number of cases this class * exhibits class-specific exemptions from the USB specification. * Notably the usage of NAK, STALL and ACK differs from the norm, in * that they are used to communicate wait, failed and OK on commands. * * Also, for certain devices, the interrupt endpoint is used to convey * status of a command. * * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more * information about this driver. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2, or (at your option) any * later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _PROTOCOL_H_ #define _PROTOCOL_H_ /* Protocol handling routines */ extern void usb_stor_pad12_command(struct scsi_cmnd*, struct us_data*); extern void usb_stor_ufi_command(struct scsi_cmnd*, struct us_data*); extern void usb_stor_transparent_scsi_command(struct scsi_cmnd*, struct us_data*); /* struct scsi_cmnd transfer buffer access utilities */ enum xfer_buf_dir {TO_XFER_BUF, FROM_XFER_BUF}; extern unsigned int usb_stor_access_xfer_buf(unsigned char *buffer, unsigned int buflen, struct scsi_cmnd *srb, struct scatterlist **, unsigned int *offset, enum xfer_buf_dir dir); extern void usb_stor_set_xfer_buf(unsigned char *buffer, unsigned int buflen, struct scsi_cmnd *srb); #endif hor'>author
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-16 09:34:37 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-16 09:34:37 -0800
commit2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc (patch)
tree4d8ea8e6ca52f1938269937834641205d8d888f0 /include/trace/events
parent49def1853334396f948dcb4cedb9347abb318df5 (diff)
parentce1ca7d2d140a1f4aaffd297ac487f246963dd2f (diff)
Merge tag 'nfsd-4.10-1' of git://linux-nfs.org/~bfields/linux
Pull nfsd fixes from Bruce Fields: "Miscellaneous nfsd bugfixes, one for a 4.10 regression, three for older bugs" * tag 'nfsd-4.10-1' of git://linux-nfs.org/~bfields/linux: svcrdma: avoid duplicate dma unmapping during error recovery sunrpc: don't call sleeping functions from the notifier block callbacks svcrpc: don't leak contexts on PROC_DESTROY nfsd: fix supported attributes for acl & labels
Diffstat (limited to 'include/trace/events')