cregit-Linux how code gets into the kernel

Release 4.11 drivers/usb/storage/initializers.c

/*
 * Special Initializers for certain USB Mass Storage devices
 *
 * 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.
 */

#include <linux/errno.h>

#include "usb.h"
#include "initializers.h"
#include "debug.h"
#include "transport.h"

/*
 * This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target
 * mode
 */

int usb_stor_euscsi_init(struct us_data *us) { int result; usb_stor_dbg(us, "Attempting to init eUSCSI bridge...\n"); result = usb_stor_control_msg(us, us->send_ctrl_pipe, 0x0C, USB_RECIP_INTERFACE | USB_TYPE_VENDOR, 0x01, 0x0, NULL, 0x0, 5 * HZ); usb_stor_dbg(us, "-- result is %d\n", result); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)4878.69%116.67%
Joe Perches69.84%116.67%
Mark Knibbs58.20%233.33%
Matthew Dharm23.28%233.33%
Total61100.00%6100.00%

/* * This function is required to activate all four slots on the UCR-61S2B * flash reader */
int usb_stor_ucr61s2b_init(struct us_data *us) { struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap*) us->iobuf; struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap*) us->iobuf; int res; unsigned int partial; static char init_string[] = "\xec\x0a\x06\x00$PCCHIPS"; usb_stor_dbg(us, "Sending UCR-61S2B initialization packet...\n"); bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN); bcb->Tag = 0; bcb->DataTransferLength = cpu_to_le32(0); bcb->Flags = bcb->Lun = 0; bcb->Length = sizeof(init_string) - 1; memset(bcb->CDB, 0, sizeof(bcb->CDB)); memcpy(bcb->CDB, init_string, sizeof(init_string) - 1); res = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, bcb, US_BULK_CB_WRAP_LEN, &partial); if (res) return -EIO; usb_stor_dbg(us, "Getting status packet...\n"); res = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, bcs, US_BULK_CS_WRAP_LEN, &partial); if (res) return -EIO; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Kevin Cernekee14472.73%116.67%
Matthew Dharm2211.11%116.67%
Alan Stern147.07%116.67%
Pete Zaitcev94.55%116.67%
Joe Perches63.03%116.67%
Marcin Ślusarz31.52%116.67%
Total198100.00%6100.00%

/* This places the HUAWEI E220 devices in multi-port mode */
int usb_stor_huawei_e220_init(struct us_data *us) { int result; result = usb_stor_control_msg(us, us->send_ctrl_pipe, USB_REQ_SET_FEATURE, USB_TYPE_STANDARD | USB_RECIP_DEVICE, 0x01, 0x0, NULL, 0x0, 1 * HZ); usb_stor_dbg(us, "Huawei mode set result is %d\n", result); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johann Wilhelm4481.48%116.67%
Joe Perches35.56%116.67%
Mark Knibbs35.56%116.67%
fangxiaozhi23.70%116.67%
Björn Mork11.85%116.67%
Pete Zaitcev11.85%116.67%
Total54100.00%6100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Kevin Cernekee14744.28%15.88%
Linus Torvalds (pre-git)5416.27%15.88%
Johann Wilhelm4413.25%15.88%
Matthew Dharm278.13%423.53%
Joe Perches154.52%15.88%
Alan Stern144.22%15.88%
Pete Zaitcev103.01%15.88%
Mark Knibbs82.41%211.76%
Marcin Ślusarz30.90%15.88%
Felipe Balbi30.90%15.88%
Linus Torvalds30.90%15.88%
fangxiaozhi20.60%15.88%
Björn Mork20.60%15.88%
Total332100.00%17100.00%
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