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From: "Björn Gerhart" <gerhart@posteo.de>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Hardware Monitoring <linux-hwmon@vger.kernel.org>
Subject: Re: [PATCH] hwmon: (nct6775) Integrated new model nct6116
Date: Thu, 18 Jul 2019 22:19:16 +0200	[thread overview]
Message-ID: <ABE6F128-F3AC-42F3-A970-BAF90A7A4727@posteo.de> (raw)
In-Reply-To: <1d123c12-f8f3-729e-35ad-95f6c3289e15@roeck-us.net>

Thanks Guenter! Please see my comments below.


> Am 16.07.2019 um 15:44 schrieb Guenter Roeck <linux@roeck-us.net>:
> 
> On 7/15/19 9:47 AM, Björn Gerhart wrote:
>> Hello again and thanks for the early feedback! This is the re-worked patch of the one I sent last week. It’s created against kernel 5.1.15 and already depends on the preceding patch concerning the same code.
>> The nct6116 is the successor model of nct6106. Mainly, I’m unsure if certain details of the spec are mapped correctly to the code. These details are:
>> - NCT6116_BEEP_BITS
> 
> looks good to me.
> 
>> - int cr24 (cr23 is new, and I’m unsure if the code has to get modified therefore)
> 
> I don't see cr23h in the datasheet available to me. What am I missing ?
> 
My fault - there is no cr23h at all.

> But, yes, there are differences:
> 
> nct6116:
> 	cr1ah[2] determines AUXFANIN1/AUXFANOUT1 settings
> 	cr1b[1-1] and cr2a[1] determine AUXFANIN2/AUXFANOUT2 settings
> 	cr2b[7] is an alternate for AUXFANIN1/AUXFANOUT1
> 	cr2b[4] enable AUXFANIN0/AUXFANOUT0 (same as AUXFANIN/AUXFANOUT ?) on pin 6, 14
> 	cr24[3] enables AUXFANOUT on pin 14
> 
> nct6106:
> 	cr24[7] enables AUXFANIN on pin 6
> 	cr24[3] enables AUXFANOUT on pin 14
> 
This part turns to be the most tricky one. For me the meaning/interpretation of all the possible options is quite confusing. Especially when some contents might get mirrored to different registers.

The nct6116 covers 5 fans in total, and I identified fan4 as AUXFAN1 and fan5 as AUXFAN2. So respectively, AUXFAN0 should be the same as AUXFAN and reference to fan3.

Following, the piece of code which I hope to reflect this part of the datasheet properly:
        { else if (data->kind == nct6116) {
                int cr1a = superio_inb(sioreg, 0x1a);
                int cr1b = superio_inb(sioreg, 0x1b);
                int cr24 = superio_inb(sioreg, 0x24);
                int cr2a = superio_inb(sioreg, 0x2a);
 
                pwm3pin = cr24 & 0x08;
                fan3pin = cr2b & 0x10;
                pwm4pin = cr1a & 0x04;
                if !(cr1b & 0x03) {
                        pwm5pin = cr2a & 0x02;
                }

The registers described in the spec do not differ between pwmpin and fanpin. Which one shall get used?
If the same content is good for in and out, is pwm4pin == fan4pin?

>> - NCT6116_REG_FAN_PULSES
>> - NCT6116_FAN_PULSE_SHIFT
>> - NCT6116_ALARM_BITS
>> With the nct6116 wired on my mainboard, the sensors command seems to work as I would expect.
>> Signed-off-by: Bjoern Gerhart <gerhart@posteo.de>
>> ---
>> --- nct6775-5.1.15-1.el7.elrepo.x86_64-bugfixed/nct6775.c	2019-07-10 17:08:30.710690605 +0200
>> +++ nct6775/nct6775.c	2019-07-10 17:30:38.012416414 +0200
>> @@ -34,6 +34,7 @@
>>   *
>>   * Chip        #vin    #fan    #pwm    #temp  chip IDs       man ID
>>   * nct6106d     9      3       3       6+3    0xc450 0xc1    0x5ca3
>> + * nct6116d     9      5       5       3+3    0xd280 0xc1    0x5ca3
>>   * nct6775f     9      4       3       6+3    0xb470 0xc1    0x5ca3
>>   * nct6776f     9      5       3       6+3    0xc330 0xc1    0x5ca3
>>   * nct6779d    15      5       5       2+6    0xc560 0xc1    0x5ca3
>> @@ -72,12 +73,13 @@
>>    #define USE_ALTERNATE
>>  -enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792, nct6793,
>> -	     nct6795, nct6796, nct6797, nct6798 };
>> +enum kinds { nct6106, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792,
>> +	     nct6793, nct6795, nct6796, nct6797, nct6798 };
>>    /* used to set data->name = nct6775_device_names[data->sio_kind] */
>>  static const char * const nct6775_device_names[] = {
>>  	"nct6106",
>> +	"nct6116",
>>  	"nct6775",
>>  	"nct6776",
>>  	"nct6779",
>> @@ -92,6 +94,7 @@
>>    static const char * const nct6775_sio_names[] __initconst = {
>>  	"NCT6106D",
>> +	"NCT6116D",
>>  	"NCT6775F",
>>  	"NCT6776D/F",
>>  	"NCT6779D",
>> @@ -129,6 +132,7 @@
>>  #define SIO_REG_ADDR		0x60	/* Logical device address (2 bytes) */
>>    #define SIO_NCT6106_ID		0xc450
>> +#define SIO_NCT6116_ID		0xd280
>>  #define SIO_NCT6775_ID		0xb470
>>  #define SIO_NCT6776_ID		0xc330
>>  #define SIO_NCT6779_ID		0xc560
>> @@ -910,6 +914,119 @@
>>  	[12] = 0x205,
>>  };
>>  +/* NCT6112D/NCT6114D/NCT6116D specific data */
>> +
>> +#define NCT6116_REG_VBAT	0x318
>> +#define NCT6116_REG_DIODE	0x319
>> +#define NCT6116_DIODE_MASK	0x01
>> +
>> +static const u16 NCT6116_REG_IN_MAX[] = {
>> +	0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9e, 0xa0, 0xa2 };
>> +static const u16 NCT6116_REG_IN_MIN[] = {
>> +	0x91, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9f, 0xa1, 0xa3 };
>> +static const u16 NCT6116_REG_IN[] = {
>> +	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 };
>> +
>> +static const u16 NCT6116_REG_TEMP[] = { 0x10, 0x11, 0x12 };
>> +static const u16 NCT6116_REG_TEMP_MON[] = { 0x18, 0x19, 0x1a };
>> +static const u16 NCT6116_REG_TEMP_HYST[] = { 0xc3, 0xc7, 0xcb };
>> +static const u16 NCT6116_REG_TEMP_OVER[] = { 0xc2, 0xc6, 0xca };
>> +static const u16 NCT6116_REG_TEMP_CRIT_L[] = { 0xc0, 0xc4, 0xc8 };
>> +static const u16 NCT6116_REG_TEMP_CRIT_H[] = { 0xc1, 0xc5, 0xc9 };
>> +static const u16 NCT6116_REG_TEMP_OFFSET[] = { 0x311, 0x312, 0x313 };
>> +static const u16 NCT6116_REG_TEMP_CONFIG[] = { 0xb7, 0xb8, 0xb9 };
>> +
>> +static const u16 NCT6116_REG_FAN[] = { 0x20, 0x22, 0x24, 0x26, 0x28 };
>> +static const u16 NCT6116_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4, 0xe6, 0xe8 };
>> +static const u16 NCT6116_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6, 0xf6, 0xf5 };
>> +static const u16 NCT6116_FAN_PULSE_SHIFT[] = { 0, 2, 4, 6, 6 };
>> +
>> +static const u8 NCT6116_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3 };
>> +static const u8 NCT6116_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04 };
>> +static const u16 NCT6116_REG_PWM[] = { 0x119, 0x129, 0x139, 0x199, 0x1a9 };
>> +static const u16 NCT6116_REG_PWM_READ[] = { 0x4a, 0x4b, 0x4c };
>> +static const u16 NCT6116_REG_FAN_MODE[] = { 0x113, 0x123, 0x133, 0x193, 0x1a3 };
>> +static const u16 NCT6116_REG_TEMP_SEL[] = { 0x110, 0x120, 0x130, 0x190, 0x1a0 };
>> +static const u16 NCT6116_REG_TEMP_SOURCE[] = { 0xb0, 0xb1, 0xb2 };
>> +
>> +static const u16 NCT6116_REG_CRITICAL_TEMP[] = {
>> +	0x11a, 0x12a, 0x13a, 0x19a, 0x1aa };
>> +static const u16 NCT6116_REG_CRITICAL_TEMP_TOLERANCE[] = {
>> +	0x11b, 0x12b, 0x13b, 0x19b, 0x1ab };
>> +
>> +static const u16 NCT6116_REG_CRITICAL_PWM_ENABLE[] = {
>> +	0x11c, 0x12c, 0x13c, 0x19c, 0x1ac };
>> +#define NCT6116_CRITICAL_PWM_ENABLE_MASK	0x10
>> +static const u16 NCT6116_REG_CRITICAL_PWM[] = {
>> +	0x11d, 0x12d, 0x13d, 0x19d, 0x1ad };
>> +
>> +static const u16 NCT6116_REG_FAN_STEP_UP_TIME[] = {
>> +	0x114, 0x124, 0x134, 0x194, 0x1a4 };
>> +static const u16 NCT6116_REG_FAN_STEP_DOWN_TIME[] = {
>> +	0x115, 0x125, 0x135, 0x195, 0x1a5 };
>> +static const u16 NCT6116_REG_FAN_STOP_OUTPUT[] = {
>> +	0x116, 0x126, 0x136, 0x196, 0x1a6 };
>> +static const u16 NCT6116_REG_FAN_START_OUTPUT[] = {
>> +	0x117, 0x127, 0x137, 0x197, 0x1a7 };
>> +static const u16 NCT6116_REG_FAN_STOP_TIME[] = {
>> +	0x118, 0x128, 0x138, 0x198, 0x1a8 };
>> +static const u16 NCT6116_REG_TOLERANCE_H[] = {
>> +	0x112, 0x122, 0x132, 0x192, 0x1a2 };
>> +
>> +static const u16 NCT6116_REG_TARGET[] = {
>> +	0x111, 0x121, 0x131, 0x191, 0x1a1 };
>> +
>> +static const u16 NCT6116_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188 };
>> +static const u16 NCT6116_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189 };
>> +static const u16 NCT6116_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a };
>> +static const u16 NCT6116_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x18b };
>> +static const u16 NCT6116_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c };
>> +static const u16 NCT6116_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d };
>> +
>> +static const u16 NCT6116_REG_AUTO_TEMP[] = {
>> +	0x160, 0x170, 0x180, 0x1d0, 0x1e0 };
>> +static const u16 NCT6116_REG_AUTO_PWM[] = {
>> +	0x164, 0x174, 0x184, 0x1d4, 0x1e4 };
>> +
>> +static const u16 NCT6116_REG_ALARM[NUM_REG_ALARM] = {
>> +	0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d };
>> +
>> +static const s8 NCT6116_ALARM_BITS[] = {
>> +	0, 1, 2, 3, 4, 5, 7, 8,		/* in0.. in7 */
>> +	9, -1, -1, -1, -1, -1, -1,	/* in8..in9 */
>> +	-1,				/* unused */
>> +	32, 33, 34, 35, 36,		/* fan1..fan5 */
>> +	-1, -1, -1,			/* unused */
>> +	16, 17, 18, -1, -1, -1,		/* temp1..temp6 */
>> +	48, -1				/* intrusion0, intrusion1 */
>> +};
>> +
>> +static const u16 NCT6116_REG_BEEP[NUM_REG_BEEP] = {
>> +	0x3c0, 0x3c1, 0x3c2, 0x3c3, 0x3c4 };
>> +
>> +static const s8 NCT6116_BEEP_BITS[] = {
>> +	0, 1, 2, 3, 4, 5, 7, 8,		/* in0.. in7 */
>> +	9, 10, 11, 12, -1, -1, -1,	/* in8..in14 */
>> +	32,				/* global beep enable */
>> +	24, 25, 26, 27, 28,		/* fan1..fan5 */
>> +	-1, -1, -1,			/* unused */
>> +	16, 17, 18, -1, -1, -1,		/* temp1..temp6 */
>> +	34, -1				/* intrusion0, intrusion1 */
>> +};
>> +
>> +static const u16 NCT6116_REG_TEMP_ALTERNATE[32] = {
>> +	[14] = 0x51,
>> +	[15] = 0x52,
>> +	[16] = 0x54,
>> +};
>> +
>> +static const u16 NCT6116_REG_TEMP_CRIT[32] = {
>> +	[11] = 0x204,
>> +	[12] = 0x205,
>> +};
>> +
> Unfortunately, this time you duplicated data for _all_ registers, not just
> the different ones. Idea is to retain the registers which don't change
> and only list the changed registers for a new chip.
> 
>> +
>> +
> No more than one empty line, please.
> 
>>  static enum pwm_enable reg_to_pwm_enable(int pwm, int mode)
>>  {
>>  	if (mode == 0 && pwm == 255)
>> @@ -1308,6 +1425,11 @@
>>  		return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
>>  		  reg == 0xe0 || reg == 0xe2 || reg == 0xe4 ||
>>  		  reg == 0x111 || reg == 0x121 || reg == 0x131;
>> +	case nct6116:
>> +		return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
>> +		  reg == 0x26 || reg == 0x28 || reg == 0xe0 || reg == 0xe2 ||
>> +		  reg == 0xe4 || reg == 0xe6 || reg == 0xe8 || reg == 0x111 ||
>> +		  reg == 0x121 || reg == 0x131 || reg == 0x191 || reg == 0x1a1;
>>  	case nct6775:
>>  		return (((reg & 0xff00) == 0x100 ||
>>  		    (reg & 0xff00) == 0x200) &&
>> @@ -1687,6 +1809,7 @@
>>  			data->auto_pwm[i][data->auto_pwm_num] = 0xff;
>>  			break;
>>  		case nct6106:
>> +		case nct6116:
>>  		case nct6779:
>>  		case nct6791:
>>  		case nct6792:
>> @@ -3123,6 +3246,7 @@
>>  		case nct6776:
>>  			break; /* always enabled, nothing to do */
>>  		case nct6106:
>> +		case nct6116:
>>  		case nct6779:
>>  		case nct6791:
>>  		case nct6792:
>> @@ -3544,7 +3668,7 @@
>>    		fan4min = fan4pin;
>>  		pwm3pin = fan3pin;
>> -	} else if (data->kind == nct6106) {
>> +	} else if ((data->kind == nct6106) || (data->kind == nct6116)) {
> 
> nct6116 will need a separate if statement per above.
> 
>>  		int cr24 = superio_inb(sioreg, 0x24);
>>    		fan3pin = !(cr24 & 0x80);
>> @@ -3821,6 +3945,79 @@
>>  		reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H;
>>    		break;
>> +	case nct6116:
>> +		data->in_num = 9;
>> +		data->pwm_num = 3;
>> +		data->auto_pwm_num = 4;
>> +		data->temp_fixed_num = 3;
>> +		data->num_temp_alarms = 3;
>> +		data->num_temp_beeps = 3;
>> +
>> +		data->fan_from_reg = fan_from_reg13;
>> +		data->fan_from_reg_min = fan_from_reg13;
>> +
>> +		data->temp_label = nct6776_temp_label;
>> +		data->temp_mask = NCT6776_TEMP_MASK;
>> +		data->virt_temp_mask = NCT6776_VIRT_TEMP_MASK;
>> +
>> +		data->REG_VBAT = NCT6116_REG_VBAT;
>> +		data->REG_DIODE = NCT6116_REG_DIODE;
>> +		data->DIODE_MASK = NCT6116_DIODE_MASK;
>> +		data->REG_VIN = NCT6116_REG_IN;
>> +		data->REG_IN_MINMAX[0] = NCT6116_REG_IN_MIN;
>> +		data->REG_IN_MINMAX[1] = NCT6116_REG_IN_MAX;
>> +		data->REG_TARGET = NCT6116_REG_TARGET;
>> +		data->REG_FAN = NCT6116_REG_FAN;
>> +		data->REG_FAN_MODE = NCT6116_REG_FAN_MODE;
>> +		data->REG_FAN_MIN = NCT6116_REG_FAN_MIN;
>> +		data->REG_FAN_PULSES = NCT6116_REG_FAN_PULSES;
>> +		data->FAN_PULSE_SHIFT = NCT6116_FAN_PULSE_SHIFT;
>> +		data->REG_FAN_TIME[0] = NCT6116_REG_FAN_STOP_TIME;
>> +		data->REG_FAN_TIME[1] = NCT6116_REG_FAN_STEP_UP_TIME;
>> +		data->REG_FAN_TIME[2] = NCT6116_REG_FAN_STEP_DOWN_TIME;
>> +		data->REG_TOLERANCE_H = NCT6116_REG_TOLERANCE_H;
>> +		data->REG_PWM[0] = NCT6116_REG_PWM;
>> +		data->REG_PWM[1] = NCT6116_REG_FAN_START_OUTPUT;
>> +		data->REG_PWM[2] = NCT6116_REG_FAN_STOP_OUTPUT;
>> +		data->REG_PWM[5] = NCT6116_REG_WEIGHT_DUTY_STEP;
>> +		data->REG_PWM[6] = NCT6116_REG_WEIGHT_DUTY_BASE;
>> +		data->REG_PWM_READ = NCT6116_REG_PWM_READ;
>> +		data->REG_PWM_MODE = NCT6116_REG_PWM_MODE;
>> +		data->PWM_MODE_MASK = NCT6116_PWM_MODE_MASK;
>> +		data->REG_AUTO_TEMP = NCT6116_REG_AUTO_TEMP;
>> +		data->REG_AUTO_PWM = NCT6116_REG_AUTO_PWM;
>> +		data->REG_CRITICAL_TEMP = NCT6116_REG_CRITICAL_TEMP;
>> +		data->REG_CRITICAL_TEMP_TOLERANCE
>> +		  = NCT6116_REG_CRITICAL_TEMP_TOLERANCE;
>> +		data->REG_CRITICAL_PWM_ENABLE = NCT6116_REG_CRITICAL_PWM_ENABLE;
>> +		data->CRITICAL_PWM_ENABLE_MASK
>> +		  = NCT6116_CRITICAL_PWM_ENABLE_MASK;
>> +		data->REG_CRITICAL_PWM = NCT6116_REG_CRITICAL_PWM;
>> +		data->REG_TEMP_OFFSET = NCT6116_REG_TEMP_OFFSET;
>> +		data->REG_TEMP_SOURCE = NCT6116_REG_TEMP_SOURCE;
>> +		data->REG_TEMP_SEL = NCT6116_REG_TEMP_SEL;
>> +		data->REG_WEIGHT_TEMP_SEL = NCT6116_REG_WEIGHT_TEMP_SEL;
>> +		data->REG_WEIGHT_TEMP[0] = NCT6116_REG_WEIGHT_TEMP_STEP;
>> +		data->REG_WEIGHT_TEMP[1] = NCT6116_REG_WEIGHT_TEMP_STEP_TOL;
>> +		data->REG_WEIGHT_TEMP[2] = NCT6116_REG_WEIGHT_TEMP_BASE;
>> +		data->REG_ALARM = NCT6116_REG_ALARM;
>> +		data->ALARM_BITS = NCT6116_ALARM_BITS;
>> +		data->REG_BEEP = NCT6116_REG_BEEP;
>> +		data->BEEP_BITS = NCT6116_BEEP_BITS;
>> +
>> +		reg_temp = NCT6116_REG_TEMP;
>> +		reg_temp_mon = NCT6116_REG_TEMP_MON;
>> +		num_reg_temp = ARRAY_SIZE(NCT6116_REG_TEMP);
>> +		num_reg_temp_mon = ARRAY_SIZE(NCT6116_REG_TEMP_MON);
>> +		reg_temp_over = NCT6116_REG_TEMP_OVER;
>> +		reg_temp_hyst = NCT6116_REG_TEMP_HYST;
>> +		reg_temp_config = NCT6116_REG_TEMP_CONFIG;
>> +		reg_temp_alternate = NCT6116_REG_TEMP_ALTERNATE;
>> +		reg_temp_crit = NCT6116_REG_TEMP_CRIT;
>> +		reg_temp_crit_l = NCT6116_REG_TEMP_CRIT_L;
>> +		reg_temp_crit_h = NCT6116_REG_TEMP_CRIT_H;
>> +
>> +		break;
>>  	case nct6775:
>>  		data->in_num = 9;
>>  		data->pwm_num = 3;
>> @@ -4366,6 +4563,7 @@
>>  		data->have_vid = (cr2a & 0x60) == 0x40;
>>  		break;
>>  	case nct6106:
>> +	case nct6116:
>>  	case nct6779:
>>  	case nct6791:
>>  	case nct6792:
>> @@ -4397,6 +4595,9 @@
>>  		case nct6106:
>>  			tmp |= 0xe0;
>>  			break;
>> +		case nct6116:
>> +			tmp |= 0xe0;
>> +			break;
>>  		case nct6775:
>>  			tmp |= 0x1e;
>>  			break;
>> @@ -4590,6 +4791,9 @@
>>  	case SIO_NCT6106_ID:
>>  		sio_data->kind = nct6106;
>>  		break;
>> +	case SIO_NCT6116_ID:
>> +		sio_data->kind = nct6116;
>> +		break;
>>  	case SIO_NCT6775_ID:
>>  		sio_data->kind = nct6775;
>>  		break;


  reply	other threads:[~2019-07-18 20:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-15 16:47 [PATCH] hwmon: (nct6775) Integrated new model nct6116 Björn Gerhart
2019-07-16 13:44 ` Guenter Roeck
2019-07-18 20:19   ` Björn Gerhart [this message]
2019-07-19 18:01     ` Björn Gerhart
2019-07-19 19:37       ` Guenter Roeck
2019-07-22 17:46         ` Björn Gerhart
2019-07-22 20:12           ` Guenter Roeck
2019-07-23 16:06         ` Björn Gerhart
2019-07-23 16:23           ` Guenter Roeck
  -- strict thread matches above, loose matches on Subject: below --
2019-07-10 19:19 Björn Gerhart
2019-07-10 19:29 ` Björn Gerhart
2019-07-10 20:38   ` Guenter Roeck

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