Hi, On 03/24/2014 11:41 PM, Robert Butora wrote: > This patch does not modify existing drivers. It adds subdriver > to gspca for DTCS033 (Scopium) webcam for astrophotography. > The patch adds dtcs033.c and modifies Kconfig and Makefile. > > Signed-off-by: Robert Butora <robert.butora.fi@xxxxxxxxx> Thanks, I've added this to my gspca tree, and I'll include it in my next pull-req. Regards, Hans > --- > drivers/media/usb/gspca/Kconfig | 10 + > drivers/media/usb/gspca/Makefile | 2 + > drivers/media/usb/gspca/dtcs033.c | 434 ++++++++++++++++++++++++++++++++++++++ > 3 files changed, 446 insertions(+) > create mode 100644 drivers/media/usb/gspca/dtcs033.c > > diff --git a/drivers/media/usb/gspca/Kconfig b/drivers/media/usb/gspca/Kconfig > index 4f0c6d5..eed10d7 100644 > --- a/drivers/media/usb/gspca/Kconfig > +++ b/drivers/media/usb/gspca/Kconfig > @@ -50,6 +50,16 @@ config USB_GSPCA_CPIA1 > To compile this driver as a module, choose M here: the > module will be called gspca_cpia1. > > +config USB_GSPCA_DTCS033 > + tristate "DTCS033 (Scopium) USB Astro-Camera Driver" > + depends on VIDEO_V4L2 && USB_GSPCA > + help > + Say Y here if you want support for the Scopium camera > + for planetary astrophotography. > + > + To compile this driver as a module, choose M here: the > + module will be called gspca_dtcs033. > + > config USB_GSPCA_ETOMS > tristate "Etoms USB Camera Driver" > depends on VIDEO_V4L2 && USB_GSPCA > diff --git a/drivers/media/usb/gspca/Makefile b/drivers/media/usb/gspca/Makefile > index 5855131..f46975e 100644 > --- a/drivers/media/usb/gspca/Makefile > +++ b/drivers/media/usb/gspca/Makefile > @@ -2,6 +2,7 @@ obj-$(CONFIG_USB_GSPCA) += gspca_main.o > obj-$(CONFIG_USB_GSPCA_BENQ) += gspca_benq.o > obj-$(CONFIG_USB_GSPCA_CONEX) += gspca_conex.o > obj-$(CONFIG_USB_GSPCA_CPIA1) += gspca_cpia1.o > +obj-$(CONFIG_USB_GSPCA_DTCS033) += gspca_dtcs033.o > obj-$(CONFIG_USB_GSPCA_ETOMS) += gspca_etoms.o > obj-$(CONFIG_USB_GSPCA_FINEPIX) += gspca_finepix.o > obj-$(CONFIG_USB_GSPCA_JEILINJ) += gspca_jeilinj.o > @@ -48,6 +49,7 @@ gspca_main-objs := gspca.o autogain_functions.o > gspca_benq-objs := benq.o > gspca_conex-objs := conex.o > gspca_cpia1-objs := cpia1.o > +gspca_dtcs033-objs := dtcs033.o > gspca_etoms-objs := etoms.o > gspca_finepix-objs := finepix.o > gspca_jeilinj-objs := jeilinj.o > diff --git a/drivers/media/usb/gspca/dtcs033.c b/drivers/media/usb/gspca/dtcs033.c > new file mode 100644 > index 0000000..ebe48a1 > --- /dev/null > +++ b/drivers/media/usb/gspca/dtcs033.c > @@ -0,0 +1,434 @@ > +/* > + * Subdriver for Scopium astro-camera (DTCS033, 0547:7303) > + * > + * Copyright (C) 2014 Robert Butora (robert.butora.fi@xxxxxxxxx) > + * > + * 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 of the License, or > + * 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. > + */ > + > +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt > +#define MODULE_NAME "dtcs033" > +#include "gspca.h" > + > +MODULE_AUTHOR("Robert Butora <robert.butora.fi@xxxxxxxxx>"); > +MODULE_DESCRIPTION("Scopium DTCS033 astro-cam USB Camera Driver"); > +MODULE_LICENSE("GPL"); > + > + > +/* send a usb request */ > +static void reg_rw(struct gspca_dev *gspca_dev, > + u8 bRequestType, u8 bRequest, > + u16 wValue, u16 wIndex, u16 wLength) > +{ > + struct usb_device *udev = gspca_dev->dev; > + int ret; > + > + if (gspca_dev->usb_err < 0) > + return; > + > + ret = usb_control_msg(udev, > + usb_rcvctrlpipe(udev, 0), > + bRequest, > + bRequestType, > + wValue, wIndex, > + gspca_dev->usb_buf, wLength, 500); > + > + if (ret < 0) { > + gspca_dev->usb_err = ret; > + pr_err("usb_control_msg error %d\n", ret); > + } > + > + return; > +} > +/* send several usb in/out requests */ > +static int reg_reqs(struct gspca_dev *gspca_dev, > + const struct usb_ctrlrequest *preqs, int n_reqs) > +{ > + int i = 0; > + const struct usb_ctrlrequest *preq; > + > + while ((i < n_reqs) && (gspca_dev->usb_err >= 0)) { > + > + preq = &preqs[i]; > + > + reg_rw(gspca_dev, preq->bRequestType, preq->bRequest, > + preq->wValue, preq->wIndex, preq->wLength); > + > + if (gspca_dev->usb_err < 0) { > + > + PERR("usb error request no: %d / %d\n", > + i, n_reqs); > + } else if (preq->bRequestType & USB_DIR_IN) { > + > + PDEBUG(D_STREAM, > + "USB IN (%d) returned[%d] %02X %02X %02X %s", > + i, > + preq->wLength, > + gspca_dev->usb_buf[0], > + gspca_dev->usb_buf[1], > + gspca_dev->usb_buf[2], > + preq->wLength > 3 ? "...\n" : "\n"); > + } > + > + i++; > + } > + return gspca_dev->usb_err; > +} > + > +/* -- subdriver interface implementation -- */ > + > +#define DT_COLS (640) > +static const struct v4l2_pix_format dtcs033_mode[] = { > + /* raw Bayer patterned output */ > + {DT_COLS, 480, V4L2_PIX_FMT_GREY, V4L2_FIELD_NONE, > + .bytesperline = DT_COLS, > + .sizeimage = DT_COLS*480, > + .colorspace = V4L2_COLORSPACE_SRGB, > + }, > + /* this mode will demosaic the Bayer pattern */ > + {DT_COLS, 480, V4L2_PIX_FMT_SRGGB8, V4L2_FIELD_NONE, > + .bytesperline = DT_COLS, > + .sizeimage = DT_COLS*480, > + .colorspace = V4L2_COLORSPACE_SRGB, > + } > +}; > + > +/* config called at probe time */ > +static int sd_config(struct gspca_dev *gspca_dev, > + const struct usb_device_id *id) > +{ > + gspca_dev->cam.cam_mode = dtcs033_mode; > + gspca_dev->cam.nmodes = ARRAY_SIZE(dtcs033_mode); > + > + gspca_dev->cam.bulk = 1; > + gspca_dev->cam.bulk_nurbs = 1; > + gspca_dev->cam.bulk_size = DT_COLS*512; > + > + return 0; > +} > + > +/* init called at probe and resume time */ > +static int sd_init(struct gspca_dev *gspca_dev) > +{ > + return 0; > +} > + > +/* start stop the camera */ > +static int dtcs033_start(struct gspca_dev *gspca_dev); > +static void dtcs033_stopN(struct gspca_dev *gspca_dev); > + > +/* intercept camera image data */ > +static void dtcs033_pkt_scan(struct gspca_dev *gspca_dev, > + u8 *data, /* packet data */ > + int len) /* packet data length */ > +{ > + /* drop incomplete frames */ > + if (len != DT_COLS*512) { > + gspca_dev->last_packet_type = DISCARD_PACKET; > + /* gspca.c: discard invalidates the whole frame. */ > + return; > + } > + > + /* forward complete frames */ > + gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0); > + gspca_frame_add(gspca_dev, INTER_PACKET, > + data + 16*DT_COLS, > + len - 32*DT_COLS); /* skip first & last 16 lines */ > + gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); > + > + return; > +} > + > +/* -- controls: exposure and gain -- */ > + > +static void dtcs033_setexposure(struct gspca_dev *gspca_dev, > + s32 expo, s32 gain) > +{ > + /* gain [dB] encoding */ > + u16 sGain = (u16)gain; > + u16 gainVal = 224+(sGain-14)*(768-224)/(33-14); > + u16 wIndex = 0x0100|(0x00FF&gainVal); > + u16 wValue = (0xFF00&gainVal)>>8; > + > + /* exposure time [msec] encoding */ > + u16 sXTime = (u16)expo; > + u16 xtimeVal = (524*(150-(sXTime-1)))/150; > + > + const u8 bRequestType = \ > + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; > + const u8 bRequest = 0x18; > + > + reg_rw(gspca_dev, > + bRequestType, bRequest, wValue, wIndex, 0); > + if (gspca_dev->usb_err < 0) > + PERR("usb error in setexposure(gain) sequence.\n"); > + > + reg_rw(gspca_dev, > + bRequestType, bRequest, (xtimeVal<<4), 0x6300, 0); > + if (gspca_dev->usb_err < 0) > + PERR("usb error in setexposure(time) sequence.\n"); > +} > + > +/* specific webcam descriptor */ > +struct sd { > + struct gspca_dev gspca_dev;/* !! must be the first item */ > + > + /* exposure & gain controls */ > + struct { > + struct v4l2_ctrl *exposure; > + struct v4l2_ctrl *gain; > + }; > +}; > + > +static int sd_s_ctrl(struct v4l2_ctrl *ctrl) > +{ > + struct gspca_dev *gspca_dev = > + container_of(ctrl->handler, > + struct gspca_dev, ctrl_handler); > + struct sd *sd = (struct sd *) gspca_dev; > + > + gspca_dev->usb_err = 0; > + > + if (!gspca_dev->streaming) > + return 0; > + > + switch (ctrl->id) { > + case V4L2_CID_EXPOSURE: > + dtcs033_setexposure(gspca_dev, > + ctrl->val, sd->gain->val); > + break; > + case V4L2_CID_GAIN: > + dtcs033_setexposure(gspca_dev, > + sd->exposure->val, ctrl->val); > + break; > + } > + return gspca_dev->usb_err; > +} > + > +static const struct v4l2_ctrl_ops sd_ctrl_ops = { > + .s_ctrl = sd_s_ctrl, > +}; > + > +static int dtcs033_init_controls(struct gspca_dev *gspca_dev) > +{ > + struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; > + struct sd *sd = (struct sd *) gspca_dev; > + > + gspca_dev->vdev.ctrl_handler = hdl; > + v4l2_ctrl_handler_init(hdl, 2); > + /* min max step default */ > + sd->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, > + V4L2_CID_EXPOSURE, > + 1, 150, 1, 75);/* [msec] */ > + sd->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, > + V4L2_CID_GAIN, > + 14, 33, 1, 24);/* [dB] */ > + if (hdl->error) { > + PERR("Could not initialize controls: %d\n", > + hdl->error); > + return hdl->error; > + } > + > + v4l2_ctrl_cluster(2, &sd->exposure); > + return 0; > +} > + > +/* sub-driver description */ > +static const struct sd_desc sd_desc = { > + .name = MODULE_NAME, > + .config = sd_config, > + .init = sd_init, > + .start = dtcs033_start, > + .stopN = dtcs033_stopN, > + .pkt_scan = dtcs033_pkt_scan, > + .init_controls = dtcs033_init_controls, > +}; > + > +/* -- module initialisation -- */ > + > +static const struct usb_device_id device_table[] = { > + {USB_DEVICE(0x0547, 0x7303)}, > + {} > +}; > +MODULE_DEVICE_TABLE(usb, device_table); > + > +/* device connect */ > +static int sd_probe(struct usb_interface *intf, > + const struct usb_device_id *id) > +{ > + return gspca_dev_probe(intf, id, > + &sd_desc, sizeof(struct sd), > + THIS_MODULE); > +} > + > +static struct usb_driver sd_driver = { > + .name = MODULE_NAME, > + .id_table = device_table, > + .probe = sd_probe, > + .disconnect = gspca_disconnect, > +#ifdef CONFIG_PM > + .suspend = gspca_suspend, > + .resume = gspca_resume, > + .reset_resume = gspca_resume, > +#endif > +}; > +module_usb_driver(sd_driver); > + > + > +/* --------------------------------------------------------- > + USB requests to start/stop the camera [USB 2.0 spec Ch.9]. > + > + bRequestType : > + 0x40 = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, > + 0xC0 = USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, > +*/ > +static const struct usb_ctrlrequest dtcs033_start_reqs[] = { > +/* -- bRequest,wValue,wIndex,wLength */ > +{ 0x40, 0x01, 0x0001, 0x000F, 0x0000 }, > +{ 0x40, 0x01, 0x0000, 0x000F, 0x0000 }, > +{ 0x40, 0x01, 0x0001, 0x000F, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x7F00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1001, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0004, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x7F01, 0x0000 }, > +{ 0x40, 0x18, 0x30E0, 0x0009, 0x0000 }, > +{ 0x40, 0x18, 0x0500, 0x012C, 0x0000 }, > +{ 0x40, 0x18, 0x0380, 0x0200, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x035C, 0x0000 }, > +{ 0x40, 0x18, 0x05C0, 0x0438, 0x0000 }, > +{ 0x40, 0x18, 0x0440, 0x0500, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0668, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0700, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0800, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0900, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0A00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0B00, 0x0000 }, > +{ 0x40, 0x18, 0x30E0, 0x6009, 0x0000 }, > +{ 0x40, 0x18, 0x0500, 0x612C, 0x0000 }, > +{ 0x40, 0x18, 0x2090, 0x6274, 0x0000 }, > +{ 0x40, 0x18, 0x05C0, 0x6338, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6400, 0x0000 }, > +{ 0x40, 0x18, 0x05C0, 0x6538, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6600, 0x0000 }, > +{ 0x40, 0x18, 0x0680, 0x6744, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6800, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6900, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6A00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6B00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6C00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6D00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6E00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x808C, 0x0000 }, > +{ 0x40, 0x18, 0x0010, 0x8101, 0x0000 }, > +{ 0x40, 0x18, 0x30E0, 0x8200, 0x0000 }, > +{ 0x40, 0x18, 0x0810, 0x832C, 0x0000 }, > +{ 0x40, 0x18, 0x0680, 0x842B, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x8500, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x8600, 0x0000 }, > +{ 0x40, 0x18, 0x0280, 0x8715, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x880C, 0x0000 }, > +{ 0x40, 0x18, 0x0010, 0x8901, 0x0000 }, > +{ 0x40, 0x18, 0x30E0, 0x8A00, 0x0000 }, > +{ 0x40, 0x18, 0x0810, 0x8B2C, 0x0000 }, > +{ 0x40, 0x18, 0x0680, 0x8C2B, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x8D00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x8E00, 0x0000 }, > +{ 0x40, 0x18, 0x0280, 0x8F15, 0x0000 }, > +{ 0x40, 0x18, 0x0010, 0xD040, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0xD100, 0x0000 }, > +{ 0x40, 0x18, 0x00B0, 0xD20A, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0xD300, 0x0000 }, > +{ 0x40, 0x18, 0x30E2, 0xD40D, 0x0000 }, > +{ 0x40, 0x18, 0x0001, 0xD5C0, 0x0000 }, > +{ 0x40, 0x18, 0x00A0, 0xD60A, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0xD700, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x7F00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1501, 0x0000 }, > +{ 0x40, 0x18, 0x0001, 0x01FF, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0200, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0304, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1101, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1201, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1300, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1400, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1601, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1800, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1900, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1A00, 0x0000 }, > +{ 0x40, 0x18, 0x2000, 0x1B00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1C00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x2100, 0x0000 }, > +{ 0x40, 0x18, 0x00C0, 0x228E, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x3001, 0x0000 }, > +{ 0x40, 0x18, 0x0010, 0x3101, 0x0000 }, > +{ 0x40, 0x18, 0x0008, 0x3301, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x3400, 0x0000 }, > +{ 0x40, 0x18, 0x0012, 0x3549, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x3620, 0x0000 }, > +{ 0x40, 0x18, 0x0001, 0x3700, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x4000, 0x0000 }, > +{ 0x40, 0x18, 0xFFFF, 0x41FF, 0x0000 }, > +{ 0x40, 0x18, 0xFFFF, 0x42FF, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x500F, 0x0000 }, > +{ 0x40, 0x18, 0x2272, 0x5108, 0x0000 }, > +{ 0x40, 0x18, 0x2272, 0x5208, 0x0000 }, > +{ 0x40, 0x18, 0xFFFF, 0x53FF, 0x0000 }, > +{ 0x40, 0x18, 0xFFFF, 0x54FF, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6000, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6102, 0x0000 }, > +{ 0x40, 0x18, 0x0010, 0x6214, 0x0000 }, > +{ 0x40, 0x18, 0x0C80, 0x6300, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6401, 0x0000 }, > +{ 0x40, 0x18, 0x0680, 0x6551, 0x0000 }, > +{ 0x40, 0x18, 0xFFFF, 0x66FF, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6702, 0x0000 }, > +{ 0x40, 0x18, 0x0010, 0x6800, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6900, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6A00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6B00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6C00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6D01, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6E00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x6F00, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x7000, 0x0000 }, > +{ 0x40, 0x18, 0x0001, 0x7118, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x2001, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1101, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1301, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1300, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1501, 0x0000 }, > +{ 0xC0, 0x11, 0x0000, 0x24C0, 0x0003 }, > +{ 0x40, 0x18, 0x0000, 0x3000, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x3620, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x1501, 0x0000 }, > +{ 0x40, 0x18, 0x0010, 0x6300, 0x0000 }, > +{ 0x40, 0x18, 0x0002, 0x01F0, 0x0000 }, > +{ 0x40, 0x01, 0x0003, 0x000F, 0x0000 } > +}; > + > +static const struct usb_ctrlrequest dtcs033_stop_reqs[] = { > +/* -- bRequest,wValue,wIndex,wLength */ > +{ 0x40, 0x01, 0x0001, 0x000F, 0x0000 }, > +{ 0x40, 0x01, 0x0000, 0x000F, 0x0000 }, > +{ 0x40, 0x18, 0x0000, 0x0003, 0x0000 } > +}; > +static int dtcs033_start(struct gspca_dev *gspca_dev) > +{ > + return reg_reqs(gspca_dev, dtcs033_start_reqs, > + ARRAY_SIZE(dtcs033_start_reqs)); > +} > + > +static void dtcs033_stopN(struct gspca_dev *gspca_dev) > +{ > + reg_reqs(gspca_dev, dtcs033_stop_reqs, > + ARRAY_SIZE(dtcs033_stop_reqs)); > + return; > +} > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html